Tüm alıştırma soruları

3551 soru

Soru 2821Soru

A field technician is configuring an enterprise laptop to connect to a high-performance docking station requiring dual 4K video outputs and external PCIe bandwidth over a single connection. The laptop has multiple physical USB Type-C ports, but only one designated port operates all connected dock peripherals and displays correctly. Which host controller protocol capability must the technician verify on the laptop port to ensure full functionality with this dock?

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Cevap: Thunderbolt protocol support integrated into the specific USB Type-C port controller

Cevap

The technician must verify Thunderbolt protocol support on the specific USB Type-C port host controller.
Thunderbolt technology (such as Thunderbolt 3 or 4) uses the USB Type-C connector shape but adds dedicated high-bandwidth capabilities, including PCIe data tunneling and dual DisplayPort video channels. Verifying Thunderbolt host controller support on the specific laptop port ensures the single cable can drive dual 4K monitors and high-speed dock peripherals simultaneously.

Adım Adım Çözüm

1
Identify the physical interface and requirement
The docking station requires high-bandwidth video and PCIe throughput over a physical USB Type-C form factor.
Physical USB Type-C connectors support multiple underlying protocols which vary by port.
2
Differentiate connector shape from protocol capabilities
Confirm that only ports backed by a Thunderbolt host controller support dual 4K video streams and PCIe tunneling.
Standard USB 3.2 protocols lack sufficient bandwidth and alternate mode capabilities for dual 4K docking.
3
Select the correct port and verification standard
Connect the dock specifically to the Thunderbolt-enabled USB Type-C port.
Ensures full compatibility and feature utilization of the external workstation dock.

Anahtar Kavram

USB Type-C Protocol vs. Connector Standards (Thunderbolt vs. Standard USB)
Tahmini Süre:1m 15s
Soru 2822Soru

A field technician is deploying a network management appliance inside an industrial facility with significant electromagnetic interference (EMI) from heavy motorized equipment. The deployment requires establishing a direct connection to a legacy switch console port using an RS-232 serial interface, as well as running a 10Gbps Ethernet network trunk line over a distance of 85 meters (85 m85\text{ m}) across the factory floor. Which TWO of the following cabling standards and physical connector types must the technician select to meet these requirements?

Geçerli olan tümünü seçin

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Cevap: DB-9 connector for the serial console interface; STP Category 6a cable for the Ethernet network trunk line

Cevap

The technician should select the DB-9 connector for the serial console connection and STP Category 6a cabling for the 10Gbps Ethernet trunk line.
Connecting to a legacy RS-232 serial console port requires a DB-9 connector. Running 10Gbps Ethernet over 85 meters in an environment with high electromagnetic interference requires Category 6a STP cabling, which supports 10Gbps up to 100 meters and includes foil shielding against motor noise.

Adım Adım Çözüm

1
Identify physical connector requirement for legacy RS-232 serial console connectivity.
Legacy RS-232 management ports utilize 9-pin D-subminiature (DB-9 / DE-9) physical connectors.
DB-9 connectors provide the dedicated pins required for RS-232 asynchronous serial data communication.
2
Determine copper Ethernet cabling requirement for 10Gbps throughput across an 85m industrial span.
Category 6a supports 10Gbps up to 100 meters, and Shielded Twisted Pair (STP) protects data signals from industrial EMI.
Standard Cat 6 UTP drops throughput to 1Gbps beyond 55 meters and lacks shielding against heavy electrical motor noise.

Anahtar Kavram

Selecting appropriate copper cabling standards (Category 6a STP vs Cat 6 UTP) and serial peripheral connectors (DB-9) based on distance, bandwidth, and environmental EMI constraints.
Soru 2823Soru

A system administrator needs to ensure that workstation hostnames automatically resolve to their corresponding IP addresses on the local corporate network. Which network host service should be configured to perform this primary function?

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Cevap: DNS server

Cevap

DNS server
Domain Name System (DNS) servers translate human-readable domain names and hostnames into numerical IP addresses required for network routing and communication.

Adım Adım Çözüm

1
Identify the network requirement in the prompt
The requirement is translating hostnames to IP addresses for communication
Users connect to network resources using names, but network traffic relies on IP addresses
2
Select the server role that fulfills name resolution
Domain Name System (DNS) maintains database records mapping hostnames to IP addresses
DNS is the standard protocol and host service designed specifically for hostname-to-IP address resolution

Anahtar Kavram

Domain Name System (DNS) Host Service Role
Soru 2824Soru

A system administrator needs to enforce security policies and data encryption strictly on corporate email and enterprise apps installed on employees' personal mobile devices, without managing or altering their personal photos and applications. Which of the following solutions should the administrator implement?

Cevabı ve açıklamayı göster

Cevap: Mobile Application Management (MAM)

Cevap

Mobile Application Management (MAM) is the correct choice because it enables application-level containerization and security controls on corporate software without controlling or clearing personal user data.
Mobile Application Management (MAM) allows organizations to manage, secure, and push security policies to specific corporate applications and containerized data on mobile devices, ensuring personal data on BYOD devices remains completely unmanaged and private.

Adım Adım Çözüm

1
Analyze the management scope requirements in the scenario.
The requirement specifies controlling corporate applications and data while leaving personal device content untouched.
This requires containerization at the software level rather than full control over the hardware OS.
2
Compare Mobile Application Management (MAM) with Mobile Device Management (MDM).
MAM governs specific corporate apps and their stored data (application level), whereas MDM governs the overall device and operating system.
MAM precisely fits the BYOD enterprise application security requirement.

Anahtar Kavram

Mobile Application Management (MAM) vs Mobile Device Management (MDM)
Soru 2825Soru

A technician is called to inspect a user's corporate laptop after the user reported that the touchpad is physically bulging upward out of the palm rest and the mouse cursor moves erratically. The laptop continues to function normally while connected to its AC power adapter. Which of the following is the MOST appropriate immediate action for the technician to take?

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Cevap: Safely power down the laptop, disconnect the AC adapter, and replace the swollen battery following safety protocols.

Cevap

Safely power down the laptop, disconnect the AC adapter, and replace the swollen battery following safety protocols.
The correct action is to safely power down the laptop, disconnect external power, and replace the battery. Physical swelling of a lithium-ion battery causes internal gas build-up that pushes against laptop components such as the touchpad and palm rest. Continuing to run or charge the device presents a fire and safety hazard.

Adım Adım Çözüm

1
Identify the underlying cause of the physical symptom
Recognize that a bulging palm rest and lifting touchpad in a laptop are classic symptoms of a swollen lithium-ion battery.
Lithium-ion batteries build up gas internally when damaged or degraded, exerting pressure on surrounding laptop components.
2
Evaluate safety risks
Determine that continuing to power or charge a swollen battery creates a hazard of chemical exposure or thermal runaway.
Safety must take priority over system diagnostics when hardware components are physically failing and compromised.
3
Select the correct remediation procedure
Power off the device, remove AC power, and replace the battery safely.
Immediate removal and proper hazardous waste disposal of the swollen cell eliminates the safety risk and repairs the hardware defect.

Anahtar Kavram

Lithium-ion Battery Swelling Identification and Safety Management
Soru 2826Soru

A technician is preparing to perform a memory upgrade on a user's laptop. Which RAM module form factor should the technician select to ensure physical compatibility with the laptop's motherboard slot?

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Cevap: SO-DIMM module

Cevap

The technician must select an SO-DIMM module because it is the standard form factor manufactured for laptop memory slots.
SO-DIMM (Small Outline Dual In-line Memory Module) is the standard RAM form factor built for mobile computers and laptops due to its compact size.

Adım Adım Çözüm

1
Identify the physical constraints of the target hardware.
Laptops require smaller internal components due to space restrictions.
Full-size desktop expansion components will not fit inside a laptop chassis.
2
Match the RAM form factor to laptop memory slot specifications.
Select SO-DIMM (Small Outline DIMM).
SO-DIMM modules are approximately half the length of standard desktop DIMMs and designed specifically for laptops.

Anahtar Kavram

Laptop RAM Form Factors and Hardware Compatibility
Tahmini Süre:45s
Soru 2827Soru

A network technician is provisioning hardware for a new office floor. The network design requires segmenting two departments into separate IP subnets to isolate broadcast domains and control traffic. Which of the following network hardware devices must be deployed to enable communication between these subnets and forward traffic to the Internet?

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Cevap: Router

Cevap

A router is required to connect and route traffic between different IP subnets and manage communication with external networks.
A router is a Layer 3 network device that connects separate logical networks (subnets) and routes data packets between them using logical IP addresses. It also serves as the default gateway to forward traffic destined for external networks such as the Internet.

Adım Adım Çözüm

1
Identify the primary network requirement described in the scenario
The requirement is to interconnect two separate IP subnets and enable external Internet access.
Subnetting creates distinct Layer 3 network boundaries that require a Layer 3 routing mechanism to communicate.
2
Evaluate candidate hardware devices based on OSI layer capabilities
Layer 2 switches only switch frames within the same subnet. DHCP servers handle address leasing. Wireless repeaters extend wireless signals. Only a router operates at Layer 3 to inspect IP destinations and forward traffic between logical subnets.
Routing decisions between logical IP networks require a Layer 3 device.

Anahtar Kavram

Layer 3 Routing and Network Boundaries
Tahmini Süre:1m 0s
Soru 2828Soru

An organization adopts a Bring Your Own Device (BYOD) mobile policy. Employees must be able to access corporate email and proprietary application data on their personal smartphones. However, company policy dictates that administrators must have the ability to remotely wipe corporate data if a device is compromised or an employee leaves the company, without altering or viewing personal photos, personal applications, or personal settings. Which of the following solutions should the systems administrator implement to satisfy this security requirement?

Cevabı ve açıklamayı göster

Cevap: Mobile Application Management (MAM) with storage containerization

Cevap

Mobile Application Management (MAM) with storage containerization
Mobile Application Management (MAM) with storage containerization creates a logically isolated, encrypted segment on personal devices dedicated exclusively to corporate applications and data. This allows administrators to manage security policies and perform selective remote wipes of corporate assets without accessing or erasing personal photos, personal applications, or private settings.

Adım Adım Çözüm

1
Analyze the technical requirements of the scenario.
Identified a BYOD environment requiring selective corporate data isolation and targeted remote wipe capability.
The organization needs control over enterprise applications without impacting or accessing employee personal data.
2
Evaluate mobile administrative control models.
Mobile Application Management (MAM) provides granular control over individual applications and containerized data vaults.
MAM allows administrators to issue a selective wipe command targeting only corporate containers while leaving personal software, photos, and files untouched.
3
Differentiate MAM from MDM full wipes and protocol misconfigurations.
MDM controls whole-device policies and full factory resets, whereas email protocols like POP3 or hardware/subscriber IDs like IMSI do not provide application containerization.
MAM containerization is specifically designed for BYOD security privacy compliance.

Anahtar Kavram

Mobile Application Management (MAM) and Containerization in BYOD environments
Soru 2829Soru

A field technician is servicing a modern laptop whose built-in display remains completely dark during system startup, although the device successfully outputs video to an external monitor via USB-C. Believing the display backlight system has suffered a component failure, the technician orders a high-voltage CCFL inverter board to repair the display assembly. Which of the following best explains why this replacement part will fail to resolve the issue?

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Cevap: Modern LED-backlit LCD and OLED laptop displays do not utilize CCFL inverter boards, as LED backlights use low-voltage DC power provided by the display cable or motherboard.

Cevap

Modern LED-backlit LCD and OLED laptop displays do not utilize CCFL inverter boards, as LED backlights use low-voltage DC power provided by the display cable or motherboard.
In modern laptop hardware design, displays use LED backlighting or OLED technology. LED backlights operate on low-voltage direct current (DC) supplied directly through the internal display cable (eDP) from the system board. Inverters were only required on older laptops featuring Cold Cathode Fluorescent Lamp (CCFL) backlighting to convert low-voltage DC into high-voltage AC. Because modern laptops do not contain inverter boards, ordering one will not resolve the issue.

Adım Adım Çözüm

1
Analyze the laptop display technology identified in the scenario.
Modern laptops utilize either LED-backlit LCD displays or OLED panels.
Legacy CCFL (Cold Cathode Fluorescent Lamp) backlights required high-voltage AC power, which necessitated an inverter board to convert DC battery/motherboard power to high-voltage AC.
2
Evaluate the power requirements for LED and OLED display assemblies.
LED backlights require low-voltage DC power, while OLED panels have self-emitting pixels requiring no backlight at all.
Because no high-voltage AC conversion is needed for LED or OLED displays, an inverter board is not present in modern laptop display bezels.
3
Determine the root cause and why ordering an inverter board will fail.
The part ordered is obsolete for modern displays and cannot be installed.
The technician must diagnose components present in modern laptops, such as the display cable, motherboard video connector, or the LED display panel assembly itself.

Anahtar Kavram

Laptop Display Power and Backlight Architecture (CCFL vs. LED/OLED)
Soru 2830Soru

A system administrator is configuring a dedicated network host to aggregate and store system log files and event notifications from routers, switches, and firewalls. Which network server role should be installed on this host?

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Cevap: Syslog server

Cevap

The Syslog server role is dedicated to centrally receiving and storing system event logs from network infrastructure devices.
A Syslog server provides centralized collection, monitoring, and storage of log messages and event notifications emitted by network hardware and appliances.

Adım Adım Çözüm

1
Identify the primary requirement in the scenario.
The goal is to centrally collect and store log data generated by network hardware such as switches, routers, and firewalls.
Different server roles perform distinct functions across enterprise networks.
2
Match the requirement to the appropriate server role.
A Syslog server is designed specifically to capture logging messages sent across the network via the Syslog protocol.
Network devices natively output status, error, and security logs to a Syslog daemon running on a centralized host.

Anahtar Kavram

Syslog Server Role
Tahmini Süre:45s
Soru 2831Soru

A systems technician is deploying a specialized edge computing appliance designed to run several client virtual machines. During hardware inspection, the technician observes that the processor is permanently soldered directly onto the system board using an array of solder spheres rather than fitting into a removable socket. When attempting to start 64-bit guest virtual machines, the hypervisor throws an error stating that hardware-assisted virtualization is unavailable. Which of the following correctly identifies this CPU socket/packaging type and the required step to enable hypervisor support?

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Cevap: BGA (Ball Grid Array) packaging; enable hardware virtualization extensions (such as Intel VT-x or AMD-V) in the motherboard's UEFI/BIOS settings.

Cevap

The correct option identifies the processor as BGA (Ball Grid Array) packaging and specifies enabling hardware virtualization extensions (Intel VT-x or AMD-V) within the UEFI/BIOS settings.
Processors permanently soldered to the motherboard using solder spheres use Ball Grid Array (BGA) packaging. In addition, hosting 64-bit guest virtual machines requires hardware-assisted virtualization (Intel VT-x or AMD-V), an architectural CPU feature that must be enabled in the system UEFI/BIOS.

Adım Adım Çözüm

1
Analyze the physical CPU mounting description
Processors soldered directly to the motherboard using an array of solder balls use BGA (Ball Grid Array) packaging and cannot be upgraded via a standard socket swap.
BGA is designed for compact and embedded systems where the CPU is permanently attached during manufacturing.
2
Analyze the hypervisor error regarding hardware-assisted virtualization
Virtualization extensions (Intel VT-x / AMD-V) are architectural CPU features supported by modern x86/x64 processors but are often toggled off by default in firmware.
Enabling hardware virtualization in UEFI/BIOS exposes the necessary hardware extensions to the host operating system and hypervisor.

Anahtar Kavram

CPU packaging types (BGA vs LGA vs PGA) and architectural CPU virtualization features (VT-x / AMD-V)
Tahmini Süre:1m 30s
Soru 2832Soru

A field technician is servicing a laptop for a mobile user. The laptop display shows no image, and the user has requested a memory upgrade along with a storage expansion. During internal inspection, the technician confirms that the laptop features an OLED display assembly, standard memory slots, and an M.2 drive slot electrically wired exclusively for the SATA interface. Which of the following component selections and repair procedures should the technician perform to ensure hardware compatibility and successful repair?

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Cevap: Install an M.2 SATA SSD, insert DDR4 SO-DIMM memory modules, and replace the defective OLED display assembly without adding a backlight inverter.

Cevap

Install an M.2 SATA SSD, insert DDR4 SO-DIMM memory modules, and replace the defective OLED display assembly without adding a backlight inverter.
The correct response accurately pairs all three hardware requirements: using an M.2 SATA drive for a SATA-only slot, selecting SO-DIMM form factor memory for a laptop chassis, and recognizing that OLED panels do not require backlight inverter components.

Adım Adım Çözüm

1
Identify display technology requirement
OLED panels emit light organically at the pixel level and do not require backlight inverter boards.
Inverter boards convert DC to AC power specifically for CCFL backlights used in legacy LCD displays.
2
Select proper storage drive interface specification
Choose an M.2 SATA SSD for the upgrade.
The motherboard M.2 slot is electrically constrained to SATA protocols, rendering NVMe PCIe SSDs incompatible.
3
Select the correct RAM form factor
Choose DDR4 SO-DIMM memory modules.
Laptops use small-outline DIMMs (SO-DIMMs) due to tight chassis dimension constraints, unlike full-sized desktop DIMMs.

Anahtar Kavram

Laptop Form Factor Compatibility and Display Architecture Characteristics
Tahmini Süre:2m 0s
Soru 2833Soru

A network technician receives a support ticket stating that multiple newly deployed workstations in an office branch cannot access local resources or the internet. Upon executing the command line diagnostic tools on one of the affected systems, the technician notes that the client has auto-assigned an IP address of 169.254.42.15169.254.42.15 with a subnet mask of 255.255.0.0255.255.0.0. Which network host service is most likely offline or failing to provide configuration settings to these client devices?

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Cevap: DHCP server

Cevap

DHCP server
The DHCP server role is responsible for dynamically assigning network IP configurations to client devices. When workstations receive an address starting with 169.254.x.x, it indicates that APIPA has kicked in because the client was unable to contact a DHCP server.

Adım Adım Çözüm

1
Analyze the observed IP address configuration on the workstation.
The workstation has an IP address of 169.254.42.15169.254.42.15 with a subnet mask of 255.255.0.0255.255.0.0.
Addresses within the 169.254.0.1169.254.0.1 to 169.254.255.254169.254.255.254 range belong to the Automatic Private IP Addressing (APIPA) block.
2
Identify the cause of APIPA assignment.
APIPA occurs when a client operating system configured for dynamic IP addressing fails to locate or receive a response from an active DHCP server on the local subnet.
Without a valid DHCP lease, the client defaults to APIPA to allow limited link-local communication.
3
Determine the responsible server role.
The DHCP server role is responsible for automatically distributing IP network configurations.
Restoring or unblocking the DHCP service will allow workstations to acquire valid network IP parameters.

Anahtar Kavram

DHCP Server Role and APIPA Behavior
Tahmini Süre:1m 0s
Soru 2834Soru

A field technician is upgrading the system RAM on several executive laptops. The technician orders standard full-sized memory modules designed for desktop computers. Upon opening the laptop chassis, the technician finds that the module slots on the motherboard are significantly smaller than the ordered memory modules. Which of the following memory module form factors should the technician select to complete the laptop upgrade?

Cevabı ve açıklamayı göster

Cevap: Small Outline Dual In-line Memory Module (SO-DIMM)

Cevap

Small Outline Dual In-line Memory Module (SO-DIMM)
The correct answer specifies Small Outline Dual In-line Memory Module (SO-DIMM). Laptop motherboards use SO-DIMM slots, which are roughly half the length of standard desktop DIMMs to save space inside mobile device chassis.

Adım Adım Çözüm

1
Identify the physical constraints of the host system
Laptops require compact internal components due to space limitations inside the chassis.
Desktop memory (DIMM) is roughly double the length of laptop memory (SO-DIMM) and uses a different pin layout.
2
Evaluate memory module form factors for laptop compatibility
Select SO-DIMM memory modules.
SO-DIMMs are standard hardware components engineered specifically for laptop memory slots.

Anahtar Kavram

Laptop RAM Form Factors and Upgrades
Tahmini Süre:1m 0s
Soru 2835Soru

Following a scheduled power maintenance window at a branch office, multiple workstation users report that they cannot access internal file shares or connect to the internet. A technician runs `ipconfig /all` on an affected client machine and observes an IP address of 169.254.108.45169.254.108.45, a subnet mask of 255.255.0.0255.255.0.0, and a blank Default Gateway entry. Upon inspecting the main local host server, the technician observes that a newly installed centralized logging service failed to launch because UDP port 67 was already bound by another process that crashed during reboot. Which of the following best explains the root cause of the network connectivity failure on the workstations?

Cevabı ve açıklamayı göster

Cevap: The DHCP server service on the local host server failed to start, preventing client workstations from obtaining valid IP configuration leases and causing them to auto-assign APIPA addresses.

Cevap

The DHCP server service on the local host server failed to start, preventing client workstations from obtaining valid IP configuration leases and causing them to auto-assign APIPA addresses.
The correct answer identifies that the failure of the DHCP server role (which operates on UDP port 67) prevents client workstations from receiving dynamic IP address leases, default gateways, and DNS settings. When clients fail to communicate with a DHCP server, modern operating systems automatically assign a link-local APIPA address (169.254.x.x169.254.x.x), allowing local subnet communication if configured properly, but preventing off-subnet network and internet routing.

Adım Adım Çözüm

1
Analyze client IP configuration symptoms from output.
Workstations received an IP address in the 169.254.0.0/16 range with no default gateway.
Addresses starting with 169.254.x.x are APIPA (Automatic Private IP Addressing) addresses assigned automatically by the host OS when DHCP server discovery fails.
2
Correlate server-side service states with port 67 binding conflict.
UDP port 67 is the standard port for DHCP server listening requests.
A socket conflict or crash related to UDP port 67 prevents the DHCP host server role from listening to incoming DHCPDISCOVER broadcasts.
3
Determine the impact on local host services.
Without a functional DHCP server service, clients cannot lease valid IP parameters, leading to local-link-only fallback (APIPA) and no gateway routing.
This directly explains both the network isolation and the specific APIPA configuration observed across branch workstations.

Anahtar Kavram

DHCP Server Role and APIPA Fallback Behavior
Soru 2836Soru

A technician is troubleshooting a laptop that exhibits battery drain and displays a 'Slow Charger' warning when connected to a 100W universal USB-C Power Delivery (USB-PD) docking station. Plugging the docking station into the laptop's left USB-C port allows full-speed charging, but plugging the same cable into the right USB-C port causes the laptop to discharge under heavy workloads. Which of the following is the MOST likely cause of this behavior?

Cevabı ve açıklamayı göster

Cevap: The right-side USB-C port supports data transfer only and lacks power input capability through the internal power management controller.

Cevap

The right-side USB-C port supports data transfer only and lacks power input capability through the internal power management controller.
Modern laptop designs frequently feature asymmetrical USB-C port specifications. While all ports use the identical USB Type-C connector shape, only specific ports are connected to the internal power management controller with USB Power Delivery (USB-PD) sink capabilities. Connecting a high-wattage charger to a data-only or low-power output USB-C port will result in low-power warnings and battery drain under load because the port cannot negotiate high voltage/current profiles.

Adım Adım Çözüm

1
Analyze the reported symptoms across both ports
The left USB-C port charges normally at full 100W power, while the right USB-C port prompts a 'Slow Charger' warning and allows battery discharge under load.
Different behavior using the exact same AC adapter and dock isolates the issue to port-specific capabilities on the laptop motherboard rather than the external power supply or battery itself.
2
Evaluate laptop USB Type-C hardware design standards
Identify that manufacturers frequently configure specific physical USB-C ports with dedicated USB Power Delivery (USB-PD) integrated circuits for charging input, while secondary USB-C ports may only support USB 3.x data streams or standard 5V/15W downstream device power.
Physical connector uniformity (USB-C) does not guarantee feature parity across all ports on a given device.
3
Select the correct diagnostic conclusion
Confirm that the right-side port lacks the required motherboard routing to accept high-wattage power input.
Plugging into the designated charging port resolves the symptom without unnecessary hardware replacement or misdirected software troubleshooting.

Anahtar Kavram

USB-C Power Delivery (USB-PD) and Motherboard Port Feature Asymmetry
Soru 2837Soru

A network technician is troubleshooting connectivity issues at a newly configured remote office. Several workstations display 'Limited or No Connectivity' notifications. Executing `ipconfig /all` on an affected client yields an IPv4 address of 169.254.112.45169.254.112.45, a subnet mask of 255.255.0.0255.255.0.0, and an empty default gateway entry. When a technician assigns a valid static IP address, subnet mask, gateway, and DNS server to a workstation, full internet and internal network connectivity is immediately restored. Which server role is failing to supply automated network parameters, and which protocol ports must be allowed through local firewalls to enable this service?

Cevabı ve açıklamayı göster

Cevap: DHCP server using UDP ports 67 and 68

Cevap

The DHCP server service operating on UDP ports 67 and 68 is failing to reach the clients or is blocked by network filters.
An IP address in the range of 169.254.0.1 through 169.254.255.254 indicates that the operating system engaged Automatic Private IP Addressing (APIPA) due to an inability to contact a Dynamic Host Configuration Protocol (DHCP) server. DHCP handles automated allocation of IP addresses, subnet masks, default gateways, and DNS server addresses across a network. DHCP communicates using UDP port 67 on the server side and UDP port 68 on the client side.

Adım Adım Çözüm

1
Analyze the client IP configuration output
The IP address 169.254.112.45169.254.112.45 falls within the Automatic Private IP Addressing (APIPA) block (169.254.0.1169.254.0.1 to 169.254.255.254169.254.255.254).
Client operating systems generate an APIPA address automatically when dynamic address allocation fails.
2
Identify the failing server infrastructure role
The DHCP (Dynamic Host Configuration Protocol) server is responsible for leasing IP addresses, subnet masks, default gateways, and DNS settings.
Since static IP configuration immediately fixes the problem, the network hardware is functional, confirming that the DHCP server or DHCP relay mechanism is inaccessible.
3
Verify protocol port requirements for the failing service
DHCP relies on UDP port 67 for the server listener and UDP port 68 for client communications.
Firewall or ACL rules blocking UDP ports 67/68 prevent DHCPDISCOVER packets from reaching the DHCP server.

Anahtar Kavram

Network Host Services and Server Roles (DHCP vs DNS and APIPA Diagnosis)
Soru 2838Soru

A network technician is setting up a local office area network. All desktop computers must be connected using physical Ethernet cables to share resources on the exact same local IPv4 subnet. Inter-subnet routing and Internet access are not required for this deployment. Which network hardware device should be installed to connect these computers together?

Cevabı ve açıklamayı göster

Cevap: A Layer 2 network switch

Cevap

A Layer 2 network switch is the correct network hardware device for interconnecting devices on the same local subnet.
A Layer 2 network switch forwards frames based on physical MAC addresses to interconnect multiple network endpoints within the same local IP subnet without requiring routing functions.

Adım Adım Çözüm

1
Analyze the network requirement
The requirement calls for connecting local wired devices on a single IPv4 subnet without routing across network boundaries.
Devices on the same subnet communicate using Data Link layer (Layer 2) addressing.
2
Identify the appropriate network device
Select a Layer 2 switch.
Switches inspect destination MAC addresses and forward Ethernet frames between connected endpoints within the same collision/broadcast domain.

Anahtar Kavram

Network Switch Functionality
Soru 2839Soru

A technician is configuring power settings on a corporate laptop to help a remote employee maximize operating duration while working away from an electrical outlet. Which action should the technician take to automatically reduce system energy usage and screen brightness when the battery level drops below a specific threshold?

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Cevap: Enable Battery Saver mode in the operating system power configuration settings.

Cevap

Enabling Battery Saver mode in the operating system power settings allows the system to automatically throttle background processes and lower screen brightness when battery levels are low.
Enabling Battery Saver mode allows the operating system to automatically conserve energy by dimming the display and restricting non-essential background processes whenever the battery falls below a defined percentage.

Adım Adım Çözüm

1
Identify the goal
The requirement is to automatically conserve battery power during travel when the battery reaches a low state of charge.
Operating system power management settings provide automated features designed specifically for extended battery operation.
2
Evaluate power management features
Battery Saver mode dynamically limits system activity and adjusts display brightness based on battery percentage thresholds.
This is a built-in software feature that directly extends battery runtime without hardware changes or harmful maintenance habits.

Anahtar Kavram

Laptop Power Management and Battery Conservation Settings
Tahmini Süre:1m 0s
Soru 2840Soru

A network technician needs to deploy a dedicated hardware device at the boundary between an internal office network and the internet. This device must inspect incoming and outgoing network traffic to block unauthorized access based on configured security rules. Which hardware device should the technician install?

Cevabı ve açıklamayı göster

Cevap: Hardware firewall

Cevap

The correct device to install at the network boundary for inspecting and filtering traffic based on security rules is a hardware firewall.
A hardware firewall is designed to sit between an internal trusted network and an external untrusted network (such as the internet). It analyzes incoming and outgoing traffic against preconfigured security policies to prevent unauthorized network access.

Adım Adım Çözüm

1
Identify the primary functionality requested in the scenario.
The requirement specifies a perimeter device capable of inspecting network traffic and blocking unauthorized access using security rules.
Different network hardware devices operate at specific OSI layers and fulfill distinct operational roles.
2
Evaluate the roles of the candidate hardware devices.
A hardware firewall is specifically built for perimeter security and packet inspection, whereas switches provide local LAN bridging, patch panels manage physical cabling, and access points enable wireless connections.
Only a firewall provides active packet inspection and rule-based traffic enforcement between untrusted external networks and internal networks.

Anahtar Kavram

Perimeter Security Appliance and Hardware Firewall Operations
ÖncekiSayfa 142 / 178Sonraki
Tüm alıştırma soruları — CompTIA A+ (Core 1 & Core 2) | Examkin