pre_test
1. As a ur generates information to be nt on the network, what are the steps of the data encapsulation process?
A. Data, frame, gment, packet, bits
B. Data, packet, frame, gment, bits
C. Data, packet, gment, frame, bits
D. Data, gment, packet, frame, bits
2. Which OSI layer performs the following types of encapsulation: ISDN, Frame Relay, and HDLC?
A. Network
B. Session
C. Data link
D. Transport
3 What is the function of the first pha of PPP negotiation?
A. Link termination
B. Link-quality determination
C. Link establishment and configuration negotiation
D. Network-layer protocol configuration negotiation
4. Currently, how large are IP address?
A. 8 bit
B. 16 bit
C. 24 bit
D. 32 bit
5. Which of the following devices allows communication between VLANs to occur?
A. bridge
B. hub
C. switch
D. router
6. Which of the following is the correct order for the layers of the OSI reference model?
A. Data link, physical, transport, network, prentation, ssion, application
B. Physical, data link, network, ssion, transport, prentation, application
C. Physical, data link, network, transport, prentation, ssion, application
D. Physical, data link, network, transport, ssion, prentation, application
7. In a LAN, which of the following terms best equates to the term VLAN?
A. Collision domain
B. Broadcast domain
C. Subnet domain
D. Single switch
鼻子的构造E. Trunk
8. What is ud to resolve known IP address to MAC address?
A. ARP
B. DNS
C. POP3
D. RARP
9. Which of the following are routed protocols?
A. AppleTalk, IP, IGRP
B. IP, AppleTalk, IPX
C. IP, RIP, IPX
D. IPX, OSPF, EIGRP
10. Which of the following is a true statement regarding routing?
A. Dynamic routing automatically adjusts for topology or traffic changes.
B. Dynamic routing must always be ud to a stub network.
C. Dynamic routing us route information entered by an administrator.
D. Static routing tends to reveal everything known about a network.
11. Which OSI model layer provides negotiation of data transfer syntax?
A. Prentation
B. Application
C. Transport
D. Network
12. A PC ur turns on her computer, and as soon as the computer is up and working, she opens a web browr to brow /doc/ff6581199.html
. Which protocol(s) would definitely not be ud by the PC during this process?
a. DHCP
b. DNS
c. ARP
d. ICMP
13. Which Layer 4 protocol is connection-oriented and reliable?
A. ICMP
B. TCP
C. TFTP
D. UDP
14. Which of the following is true regarding routing metrics?
A. All routing protocols u the same metrics.
B. IGRP us bandwidth as its only metric.
C. Routers compare metrics to determine the best route.
D. The larger metric generally reprents the better path.
15. What are the two basic functions ud by a router to relay packets?
好雨A. Filtering and switching
B. Path determination and filtering
C. Path determination and switching
D. Traffic analysis and filtering
16. Which utility shows the route a packet takes to reach its destination?
A. Netstat
B. Ping
C. Telnet
D. Tracert
17.Which of the following summarized subnets is the smallest (smallest range of address) summary route that includes subnets 10.3.95.0, 10.3.96.0, and
10.3.97.0, mask 255.255.255.0?
a. 10.0.0.0 255.0.0.0
b. 10.3.0.0 255.255.0.0
c. 10.3.64.0 255.255.192.0
d. 10.3.64.0 255.255.224.0
补肾精的食物
煮螃蟹的做法18. How is a frame tagged on a VLAN?
A. With an application ID
B. With a MAC address
C. With a port ID
D. With a VLAN ID
19. What do routers u to forward packets between source and destination networks?
A. ARP cache
B. CAM table
C. Host name table
applications?
A. Application
B. Prentation
C. Session
D. Transport
21. Connection-oriented rvices involve which three phas?
A. Connection establishment, Data transfer, Connection termination
B. Connection establishment, Data transfer, Flow control
C. Connection establishment, Flow control, Connection termination
D. Data transfer, Flow control, Connection termination
22. Which statement is correct concerning routing and routed protocols?
A. A routed protocol allows the routers to communicate with other routers and maintain tables for a routing protocol.
B. A routing protocol allows routers to communicate with other routers and maintain tables for a routed protocol.
C. Routers only need to u routing protocols to work properly.
D. There is no difference between routed and routing protocols.
粘贴英文
23. Which test can be ud to verify application layer connectivity?
A. Netstat
B. Ping
C. Telnet
D. Tracert
24. What is ud by a routing protocol to determine the best path to include in the routing table?
A. Convergence time
B. Default distance
C. Metric
D. Type of router
25. Which of the following is a Layer 3 device?
A. Bridge
B. Hub
C. Repeater
D. Router
26. Which of the following routing protocols are considered to u link-state logic?
A. RIP-1
B. RIP-2
C. OSPF
D. BGP生活美
27.Which of the following devices can an administrator u to gment their LAN?
(Choo all that apply)
A. Hubs
B. Repeaters
C. Switches
D. Bridges
E. Routers
F. Media Converters
G. All of the above
28. Routers perform which of the following functions? (Select Three)
A. Packet forwarding
B. Collision prevention on a LAN gment.
C. Packet filtering
D. Broadcast domain enlargement
E. Broadcast forwarding
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F. Internetwork communication
29. Within the Ericsson office, The Sales and Production networks are parated by a router as shown in the diagram below:
Which of the following statements most accurately describes the characteristics of the above networks broadcast and collision domains? (Select the two best answer choices)
福建霞浦旅游攻略A. There are two broadcast domains in the network.
B. There are four broadcast domains in the network.
C. There are six broadcast domains in the network.
D. There are four collision domains in the network.
E. There are five collision domains in the network.
F. There are ven collision domains in the network.
30. The Ericsson corporate LAN consists of one large flat network. You decide to gment this LAN into two parate networks with a router. What will be the affect of this change?
A. The number of broadcast domains will be decread.
B. It will make the broadcasting of traffic between domains more efficient between gments.
C. It will increa the number of collisions.
D. It will prevent gment 1's broadcasts from getting to gment 2.
E. It will connect gment 1's broadcasts to gment 2.
31. The Ericsson Texas branch network is displayed in the following diagram:
