>>> Chương 5
1. In _______ delivery, both the deliverer of the IP packet and the destination are on the same network.
A) a connectionless
B) a direct
C) an indirect
D) none of the above
A) a connectionless B) a direct C) an indirect D) none of the above 2. In _______ delivery, the deliverer of the IP packet and the destination are on different networks.
A) a connection-oriented
B) a direct
C) an indirect
D) none of the above
A) a connection-oriented B) a direct C) an indirect D) none of the above 3. In _______ delivery, packets of a message are logically connected to one another.
A) a connectionless
B) a connection-oriented
C) a direct
D) none of the above
A) a connectionless B) a connection-oriented C) a direct D) none of the above 4. In _______ delivery, a packet is not connected to any other packet.
A) a connectionless
B) a connection-oriented
C) a direct
D) none of the above
A) a connectionless B) a connection-oriented C) a direct D) none of the above 5. In classful addressing, when a direct delivery is made, both the deliverer and receiver have the same _______.
A) IP address
B) hostid
C) netid
D) none of the above
A) IP address B) hostid C) netid D) none of the above 6. In classful addressing, when an indirect delivery is made, the deliverer and receiver have _______.
A) the same IP address
B) different netids
C) the same netid
D) none of the above
A) the same IP address B) different netids C) the same netid D) none of the above 7. In _______ forwarding, the full IP address of a destination is given in the routing table.
A) next-hop
B) network-specific
C) host-specific
D) default
A) next-hop B) network-specific C) host-specific D) default 8. In _______ forwarding, the mask and destination addresses are both 0.0.0.0 in the routing table.
A) next-hop
B) network-specific
C) host-specific
D) default
A) next-hop B) network-specific C) host-specific D) default 9. In _______ forwarding, the destination address is a network address in the routing table.
A) next-hop
B) network-specific
C) host-specific
D) default
A) next-hop B) network-specific C) host-specific D) default 10. In _______ forwarding, the routing table holds the address of just the next hop instead of complete route information.
A) next-hop
B) network-specific
C) host-specific
D) default
A) next-hop B) network-specific C) host-specific D) default 11. In ________ addressing, a typical forwarding module can be designed using three tables, one for each unicast class (A, B, C).
A) classful
B) classless
C) both a and b
D) none of the above
A) classful B) classless C) both a and b D) none of the above 12. In classful addressing, the class of the address can be found by shifting the copy of the address ____ bits to the right.
A) 32
B) 16
C) 28
D) none of the above
A) 32 B) 16 C) 28 D) none of the above 13. In classful addressing we need a routing table with at least ______ columns.
A) 4
B) 3
C) 8
D) none of the above
A) 4 B) 3 C) 8 D) none of the above 14. In classless addressing, we need a routing table with at least _______ columns.
A) 4
B) 3
C) 8
D) none of the above
A) 4 B) 3 C) 8 D) none of the above 15. The idea of address aggregation was designed to alleviate the increase in routing table entries when using ________.
A) classful addressing
B) classless addressing
C) both a and b
D) none of the above
A) classful addressing B) classless addressing C) both a and b D) none of the above 16. The principle of ________ states that the routing table is sorted from the longest mask to the shortest mask.
A) first mask matching
B) shortest mask matching
C) longest mask matching
D) none of the above
A) first mask matching B) shortest mask matching C) longest mask matching D) none of the above 17. The use of hierarchy in routing tables can ________ the size of the routing tables.
A) reduce
B) increase
C) both a and b
D) none of the above
A) reduce B) increase C) both a and b D) none of the above 18. _______ deals with the issues of creating and maintaining routing tables.
A) Forwarding
B) Routing
C) Directing
D) none of the above
A) Forwarding B) Routing C) Directing D) none of the above 19. A _______ routing table contains information entered manually.
A) static
B) dynamic
C) hierarchical
D) none of the above
A) static B) dynamic C) hierarchical D) none of the above 20. A _______ routing table is updated periodically using one of the dynamic routing protocols.
A) static
B) dynamic
C) hierarchical
D) none of the above
A) static B) dynamic C) hierarchical D) none of the above 21. The input and output ports of a router perform the ________ layer functions of the router.
A) physical and data link
B) network
C) transport
D) none of the above
A) physical and data link B) network C) transport D) none of the above 22. The routing processor of a router performs the ________ layer functions of the router.
A) physical and data link
B) network
C) transport
D) none of the above
A) physical and data link B) network C) transport D) none of the above 23. The task of moving the packet from the input queue to the output queue in a router is done by _________.
A) input and output ports
B) routing processor
C) switching fabrics
D) none of the above
A) input and output ports B) routing processor C) switching fabrics D) none of the aboveKimlinh.dt@baomathethong.blogspot.com
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