思科认证640-802模拟试卷8

On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously, resulting in a collision. Following this collision, what will the hosts do? (Select all valid answers)

A. The destination host sends a request to the source for retransmission.

B. The jam signal indicates that the collision has been cleared.

C. The hosts will attempt to resume transmission after a time delay has expired.

D. An electrical pulse indicates that the collision has cleared.

E. The router on the segment will signal that the collision has cleared.

F. The hosts will do nothing, as the higher layers are responsible for data error correction and re-transmission.

Using a subnet mask of 255.255.255.224, which of the IP addresses below can you assign to the hosts on this subnet? (Select all that apply)

A. 16.23.118.63

B. 87.45.16.159

C. 92.11.178.93

D. 134.178.18.56

E. 192.168.16.87

F. 217.168.166.192

CDP is being used throughout the Ezonexam network. What are two reasons why the Ezonexam network administrator would use CDP? (Choose two)

A. To determine the status of network services on a remote device

B. To obtain the IP Address of a connected device in order to telnet to the device

C. To verify the type of cable interconnecting two devices

D. To verify Layer 2 connectivity between two devices when Layer 3 fails

E. To obtain VLAN information from directly connected swticehs

F. To determine the status of the routing protocols between directly connected routers

G. To support automatic network failover during outages

Regarding DHCP (dynamic host configuration protocol), which two of the following choices below are true? (Select two answer choices)

A. The DHCP Discover message uses FF-FF-FF-FF-FF as the Layer 2 destination address.

B. The DHCP Discover message uses UDP as the transport layer protocol.

C. The DHCP Discover message uses a special Layer 2 multicast address as the destination address.

D. The DHCP Discover message uses TCP as the transport layer protocol.

E. The DHCP Discover message does not use a Layer 2 destination address.

F. The DHCP Discover message does not require a transport layer protocol.

You need to describe the various types of flow control to your co-workers. Which of the following are types of flow control that can be used in a network? (Choose three)

A. Congestion avoidance

B. Windowing

C. Cut-through

D. Buffering

E. Load Balacing

F. Fast Forward

Which sequence of actions will allow telnet traffic from a Ezonexam user's PC to a router using TCP/IP?

A. Connect the PC's COM port to the router's console port using a straight-through cable.

B. Connect the PC's COM port to the router's console port using a crossover cable.

C. Connect the PC's COM port to the router's Ethernet port using a straight-through cable.

D. Connect the PC's Ethernet port to the router's Ethernet port using a crossover cable.

E. Connect the PC's Ethernet port to the router's Ethernet port using a rollover cable.

F. Connect the PC's Ethernet port to the router's Ethernet port using a straight-through cable.

G. None of the above

You wish to segment your LAN into multiple broadcast domains. Which technology method should you implement in order to do this?

A. Transparent bridging

B. Cut-through switching

C. Fragment-free switches

D. Virtual LANs

E. Store-and-forward switching

F. None of the above

You are an administrator of the Ezonexam switched network and your goal is to reduce some of the administrative overhead on your network. You plan on achieving this by configuring a new VLAN for each department in the Ezonexam network.

However, you need to share the VLAN information across numerous switches. Which of the following would allow you accomplish this?

A. STP

B. GVRP

C. SNMP

D. VTP

E. DHCP

F. None of the above

You are given a PC, a router, and a cable. Select the correct combination that will allow you to log into router VE1 locally using a terminal emulation program such as HyperTerminal.

A. Connect the PC's COM port to the router's console port using a straight-through cable.

B. Connect the PC's COM port to the router's console port using a rollover cable.

C. Connect the PC's COM port to the router's Ethernet port using a straight-through cable.

D. Connect the PC's Ethernet port to the router's Ethernet port using a rollover cable.

E. Connect the PC's Ethernet port to the router's Ethernet port using a straight- through cable.

F. None of the above

You've been assigned a single Class C address. From this, you need 8 subnets, and your subnet mask is 255.255.255.224. Which one of the following configuration commands would you have to use before you begin?

A. Router(config)# ip classless

B. Router(config)# ip subnet-zero

C. Router(config)# ip version 6

D. Router(config)# no ip classful

E. Router(config)# ip unnumbered

F. Router(config)# ip all-nets

Which command on router EzonexamA will assign the last usable IP address from the 192.168.32.128/28 subnetwork to a router interface?

A. EzonexamA(config-if)# ip address 192.168.32.142 255.255.255.240

B. EzonexamA(config-if)# ip address 192.168.32.143 255.255.255.240

C. EzonexamA(config-if)# ip address 192.168.32.158 255.255.255.240

D. EzonexamA(config-if)# ip address 192.168.32.145 255.255.255.240

E. EzonexamA(config-if)# ip address 192.168.32.144 255.255.255.240

F. EzonexamA(config-if)# ip address 192.168.32.158 255.255.255.240

G. None of the above