>>> Chương 1
1. Why was the OSI model developed?
a./ Manufacturers disliked the TCP/IP protocol suiteb./ The rate of data transfer was increasing exponentially
c./ Standards were needed to allow any two systems to communicate
d./ None of the above
2. The _______ model shows how the network functions of a computer ought to be organized.
a./ CCITT
b./ OSI
c./ ISO
d./ ANSI
3. The physical layer is concerned with the movement of _______ over the physical medium.
a./ programs
b./ dialogs
c./ protocols
d./ bits
4. The OSI model consists of _______ layers.
a./ three
b./ five
c./ seven
d./ eight
5. In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______.
a./ added
c./ Standards were needed to allow any two systems to communicate d./ None of the above2. The _______ model shows how the network functions of a computer ought to be organized.
a./
CCITTb./ OSIc./
ISO d./ ANSI3. The physical layer is concerned with the movement of _______ over the physical medium.
a./
programsb./ dialogsc./ protocolsd./ bits4. The OSI model consists of _______ layers.
a./
threeb./ fivec./ sevend./ eight5. In the OSI model, as a data packet moves from the lower to the upper layers, headers are _______.
a./
addedb./ removed
removedc./ rearranged
d./ modified
6. In the OSI model, when data is transmitted from device A to device B, the header from Aís layer 5 is read by Bís _______ layer.
a./ physical
rearrangedd./
modified6. In the OSI model, when data is transmitted from device A to device B, the header from Aís layer 5 is read by Bís _______ layer.
a./
physicalb./ transport
c./ session
d./ presentation
7. In the OSI model, which layer functions as a liaison between user support layers and network support layers?
a./ network layer
b./ physical layer
c./ transport layer
d./ session layer
8. In the OSI model, what is the main function of the transport layer?
a./ node-to-node delivery
b./ process-to-process message delivery
c./ synchronization
d./ updating and maintenance of routing tables
9. In the OSI model, encryption and decryption are functions of the ________ layer.
a./ transport
b./ session
c./ presentation
d./ application
10. In the OSI model, which of the following is an application layer service?
a./ network virtual terminal
b./ file transfer, access, and management
c./ mail service
d./ all of the above
11. When a host on network A sends a message to a host on network B, which address does the router look at?
a./ port
b./ logical
c./ physical
d./ none of the above
12. To deliver a message to the correct application program running on a host, the _______ address must be consulted.
a./ port
b./ IP
c./ physical
d./ none of the above
13. IPv6 has _______ -bit addresses.
a./ 32
b./ 64
c./ 128
d./ variable
14. ICMPv6 includes _______.
a./ IGMP
b./ ARP
c./ RARP
d./ a and b
15. The ______ layer is responsible for moving frames from one hop (node) to the next.
a./ physical
transportc./ sessiond./ presentation 7. In the OSI model, which layer functions as a liaison between user support layers and network support layers?
a./
network layerb./ physical layerc./ transport layer d./ session layer8. In the OSI model, what is the main function of the transport layer?
a./
node-to-node deliveryb./ process-to-process message deliveryc./ synchronizationd./ updating and maintenance of routing tables9. In the OSI model, encryption and decryption are functions of the ________ layer.
a./
transportb./ sessionc./ presentation d./ application10. In the OSI model, which of the following is an application layer service?
a./
network virtual terminalb./ file transfer, access, and managementc./ mail service d./ all of the above11. When a host on network A sends a message to a host on network B, which address does the router look at?
a./
portb./ logicalc./ physical d./ none of the above12. To deliver a message to the correct application program running on a host, the _______ address must be consulted.
a./
portb./ IPc./ physical d./ none of the above13. IPv6 has _______ -bit addresses.
a./
32b./
64c./
128d./
variable14. ICMPv6 includes _______.
a./
IGMPb./ ARPc./ RARPd./ a and b15. The ______ layer is responsible for moving frames from one hop (node) to the next.
a./
physicalb./ data link
c./ transport
d./ none of the above
16. The ______ layer adds a header to the packet coming from the upper layer that includes the logical addresses of the sender and receiver.
a./ physical
b./ data link
c./ network
d./ none of the above
17. The_________ layer is responsible for the delivery of a message from one process to another.
a./ physical
b./ transport
c./ network
d./ none of the above
18. The Internetworking Protocol (IP) is a ________ protocol.
a./ reliable
b./ connection-oriented
c./ both a and b
d./ none of the above
19. ______ is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer.
a./ TCP
b./ UDP
c./ IP
d./ none of the above
20. __________ provides full transport layer services to applications.
a./ TCP
b./ UDP
c./ ARP
d./ none of the above
21. The ________ address, also known as the link address, is the address of a node as defined by its LAN or WAN.
a./ port
b./ physical
c./ logical
d./ none of the above
22. Ethernet uses a ______ physical address that is imprinted on the network interface card (NIC).
a./ 32-bit
b./ 64-bit
c./ 6-byte
d./ none of the above
23. Which of the following can be an Ethernet physical address?
a./ 01:02:01:2C:4B
data linkc./
transportd./
none of the above16. The ______ layer adds a header to the packet coming from the upper layer that includes the logical addresses of the sender and receiver.
a./
physicalb./
data linkc./
networkd./
none of the above17. The_________ layer is responsible for the delivery of a message from one process to another.
a./
physicalb./ transportc./ networkd./ none of the above18. The Internetworking Protocol (IP) is a ________ protocol.
a./
reliableb./ connection-oriented c./ both a and b d./ none of the above19. ______ is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer.
a./
TCPb./ UDP c./ IP d./ none of the above20. __________ provides full transport layer services to applications.
a./ TCP
b./ UDPc./ ARPd./
none of the above21. The ________ address, also known as the link address, is the address of a node as defined by its LAN or WAN.
a./
portb./ physicalc./ logical d./ none of the above22. Ethernet uses a ______ physical address that is imprinted on the network interface card (NIC).
a./
32-bitb./ 64-bitc./ 6-byted./
none of the above23. Which of the following can be an Ethernet physical address?
a./
01:02:01:2C:4Bb./ 07:01:02:01:2C:4B:2C
c./ 07:01:02:01:2C:4B
d./ none of the above
24. A port address in TCP/IP is ______ bits long.
a./ 32
b./ 48
c./ 16
d./ none of the above
25. IP Version 5 was a proposal based on the ______ model. This version never went beyond the proposal stage due to extensive layer changes and the projected expense.
a./ TCP
b./ OSI
07:01:02:01:2C:4B:2Cc./ 07:01:02:01:2C:4B d./ none of the above24. A port address in TCP/IP is ______ bits long.
a./
32b./ 48c./
16d./
none of the above25. IP Version 5 was a proposal based on the ______ model. This version never went beyond the proposal stage due to extensive layer changes and the projected expense.
a./
TCPb./ OSI c./ IEEE
d./ none of the above
Editor: Vương Lan Kiều
Source: http://baomathethong.blogspot.com/
Copyrighted Content: mcgraw-hill.com
IEEEd./
none of the aboveEditor: Vương Lan Kiều
Source: http://baomathethong.blogspot.com/
Copyrighted Content: mcgraw-hill.com
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