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Question

Difficulty: EasyMobile Device Wireless and Network Connectivity

Match each mobile connectivity term on the left with its correct functional description on the right.

  • IMEIA unique 15-digit hardware number assigned to identify a physical mobile device on a cellular network.
  • IMSIA unique number stored on the SIM card that identifies a specific cellular network subscriber.
  • VPNAn encrypted connection mechanism that secures mobile data traffic transmitted across public Wi-Fi networks.
  • TetheringA feature allowing a mobile device to share its cellular internet connection with nearby devices via Wi-Fi, Bluetooth, or USB.

Answer

IMEI matches the unique 15-digit hardware number assigned to identify a physical mobile device. IMSI matches the unique number stored on the SIM card identifying the network subscriber. VPN matches the encrypted connection securing mobile traffic across public Wi-Fi. Tethering matches the feature allowing a smartphone to share its cellular internet connection with nearby devices.
IMEI represents the physical device's global hardware identifier. IMSI represents the subscriber user identity associated with the SIM card. VPN establishes an encrypted communication pathway across untrusted wireless networks. Tethering provides internet access to nearby devices using the smartphone's cellular data connection.

Step-by-Step Solution

1
Distinguish between device hardware identification and subscriber account identification.
Identify IMEI as the hardware serial code and IMSI as the SIM subscriber code.
IMEI identifies the physical mobile handset while IMSI identifies the individual user account attached to the SIM.
2
Identify network security mechanisms for untrusted wireless connections.
Match VPN to encrypted tunnel connections over public Wi-Fi networks.
VPN technology protects mobile data confidentiality by encrypting traffic between the device and corporate/private networks.
3
Define connection sharing capabilities on mobile operating systems.
Match Tethering to sharing a mobile internet connection with adjacent client devices.
Tethering/hotspot allows client devices to route their internet traffic through the phone's active cellular data connection.

Key Concept

Mobile Device Wireless and Network Identifiers and Services
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Topics

Mobile Device Wireless and Network Connectivity

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