题目内容

How many bits specify the IP protocol version in a datagram?

A. 1 bit
B. 2 bits
C. 4 bits
D. 8 bits

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If IP address is 202.130.191.33, subnet mask is 255.255.255.0,then subnet prefix is?

A. 202.130.0.0
B. 202.0.0.0
C. 202.130.191.33
D. 202.130.191.0

IP addressing assigns an address to 223.10.198.250/29, the network address for this network is____.

A. 223.10.198.248
B. 223.10.198.250
C. 223.10.198.0
D. 223.10.0.0

Networking layer provides services between two ____.

A. Hosts
B. Processes
C. Applications
D. Machines

The internet’s network layer provides a single service----that is ____.

A. Reliable data transfer
B. Flow control
Congestion control
D. Best-effort-service