In modern society ,the competition is stiff,survival of the fittest ,if you do not have the base of the IT,you may obsoleted,so the certificate can be found to have a better work .
let's introduce the CCNA 640-802 certificcation
Cisco Certified Network Associate(CCNA)(640-802) belongs to one of the CCNA certified test, if needs to obtain the CCNA certificate, you also need to participate in other related test, the details you may visit the CCNA certified topic, in there, you will see all related CCNA certified subject of examination.
1. The network administrator has discovered that the power supply has failed on a switch in the company
LAN and that the switch has stopped functioning. It has been replaced with a Cisco Catalyst 2950 series
switch. What must be done to ensure that this new switch becomes the root bridge on the network?
A. Lower the bridge priority number.
B. Change the MAC address of the switch.
C. Increase the VTP revision number for the domain.
D. Lower the root path cost on the switch ports.
E. Assign the switch an IP address with the lowest value.
Answer: A
2. Before installing a new, upgraded version of the IOS, what should be checked on the router, and which
command should be used to gather this information? (Choose two.)
A. the amount of available ROM
B. the amount of available flash and RAM memory
C. the version of the bootstrap software present on the router
D. show version
E. show processes
F. show running-config
Answer: BD
3. Which three IP addresses can be assigned to hosts if the subnet mask is /27 and subnet zero is usable?
(Choose three.)
A. 10.15.32.17
B. 17.15.66.128
C. 66.55.128.1
D. 135.1.64.34
E. 129.33.192.192
F. 192.168.5.63
Answer: ACD
4. What are two reasons a network administrator would use CDP? (Choose two.)
A. to verify the type of cable interconnecting two devices
B. to determine the status of network services on a remote device
C. to obtain VLAN information from directly connected switches
D. to verify Layer 2 connectivity between two devices when Layer 3 fails
E. to obtain the IP address of a connected device in order to telnet to the device
F. to determine the status of the routing protocols between directly connected routers
Answer: DE
5. What are three characteristics of the OSPF routing protocol? (Choose three.)
A. It converges quickly.
B. OSPF is a classful routing protocol.
C. It uses cost to determine the best route.
D. It uses the DUAL algorithm to determine the best route.
E. OSPF routers send the complete routing table to all directly attached routers.
F. OSPF routers discover neighbors before exchanging routing information.
Answer: ACF
Tags:
Post comment:
◎welcome to give out your point。