超星 - chapter4 network layer part1 - 查题吧

单选题

IPV4 has a ___ bit address?

A. 48
B. 16
C. 32
D. 64

单选题

Which IP address is effective?

A. 202.131.45.61
B. 126.0.0.1
C. 192.268.0.2
D. 290.25.135.12

单选题

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

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

单选题

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

单选题

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

单选题

Networking layer provides services between two ____.

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

单选题

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

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

单选题

VC network provides network-layer ____.

A. connectionless service
B.connection service
C.both of above
D.neither of A and B

单选题

In VC network, each packet carries ____.

A.VC identifier
B.destination host address
C.IP address
D.Mac address

单选题

In ____ networking, a series of packet may follow different paths and may arrive out of order?

A.Datagram
B.VC
C.TCP
D.None of above

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