Question 51
An administrator connects two switches together in a local enterprise network. The ports of one switch support Fast Ethernet, while the ports of the other switch support Gigabit Ethernet. Hosts connected to one switch are able to communicate, however communication between the two switches fails.What is the possible reason for this?
A. The ports have disabled auto-negotiation.
B. One port is supporting auto-negotiation, while auto-negotiation is disabled on the port of the other switch.
C. The port of one switch is operating using half duplex mode, while the port of the other switch is using full duplex mode.
D. A Fast Ethernet port cannot communicate directly with a Gigabit Ethernet port.
Question 52
A layer 2 LAN switch generates CAM table entries according to the ( ) of the received frame.
A. Source MAC address
B. Destination MAC address
C. Source IP address
D. Destination IP address
Question 53
Which of the following statements about collision domains and broadcast domains are correct? (Choose three)
A. Devices connected to the same hub form a collision domain
B. Devices connected to the same hub form a broadcast domain
C. Devices connected to the same bridge form a collision domain
D. Devices connected to the same bridge form a broadcast domain
E. Devices connected to the same router form a broadcast domain
Question 54
Which of the following statements regarding layer-2 switch is incorrect?
A. The switch learns MAC addresses automatically.
B. The layer-3 header is modified before the received packet is transmitted.
C. The layer-2 header is modified before the received packet is transmitted.
D. The layer-2 LAN switch operates at data link layer.
Question 55
Refer to the display output. What can be determined based on the output of the display command?
A. Interface Gigabit Ethernet 0/0/0 is connected to a wrong cable
B. Interface Gigabit Ethernet 0/0/0 is not associated with an IP address
C. Interface Gigabit Ethernet 0/0/0 is not associated with a dynamically defined route.
D. Interface Gigabit Ethernet 0/0/0 has been manually shut down by an administrator.
Question 56
Which of the following statements regarding static and dynamic routing is incorrect?
A. The static route can be easily configured and managed on the enterprise network.
B. The use of dynamic routing is more convenient for the administrator to manage the network following network convergence.
C. The static route can automatically recover when a link failure is encountered.
D. Dynamic routing will use more resources than static routes.
Question 57
Which of the following are routed protocols? (Choose all that apply.)
A. IP
B. OSPF
C. BGP
D. IPX
Question 58
Which of the following statements regarding the routing table are correct? (Choose all that apply.)
A. The next hop in the routing table is redundant because the outgoing interface can be used for packet forwarding.
B. The routes from generated by different protocols have different preferences.
C. The metrics of different routing protocols are comparable.
D. The metrics of different routing protocols are not comparable
Question 59
Which of the following commands can be used to display the routing table on a Quidway router?
A. display ip path
B. display ip routing-table
C. display interface
D. display current-configuration
Question 60
Which of the following entries is not included in the routing table?
A. source address
B. next hop
C. destination address
D. cost
