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Q6. How many primary ipv4 addresses can be assigned on router interface ?
A. 0
B. 1
C. 4
D. Unlimited
Answer: B
Q7. Which of the following commands enables a network administrator to verify the application layer connectivity between source and destination?
A. ping
B. telnet
C. traceroute
D. verify
E. trace
Answer: B
Q8. Which transport layer protocol is best suited for the transport of VoIP data?
A. RIP
B. UDP
C. TCP
D. OSPF
E. HTTP
Answer: B
Q9. Assuming a subnet mask of 255.255.248.0, three of the following addresses are valid host addresses. Which are these addresses? (Choose three.)
A. 172.16.9.0
B. 172.16.8.0
C. 172.16.31.0
D. 172.16.20.0
Answer: A,C,D
Q10. By default, how many MAC addresses are permitted to be learned on a switch port with port security enabled?
A. 8
B. 2
C. 1
D. 0
Answer: C
Q11. Which statement about native VLAN traffic is true?
A. Cisco Discovery Protocol traffic travels on the native VLAN by default
B. Traffic on the native VLAN is tagged with 1 by default
C. Control plane traffic is blocked on the native VLAN.
D. The native VLAN is typically disabled for security reasons
Answer: A
Q12. Which statement about NTP is true?
A. The default authentication key number is 1.
B. The default source address of an NTP message is the interface connected to the next- hop for the server peer address.
C. The default stratum number is 5.
D. Each device is enabled as a server by default and propagates NTP messages to all peers on its default LAN.
Answer: B
Q13. Which method does a connected trunk port use to tag VLAN traffic?
A. IEEE 802 1w
B. IEEE 802 1D
C. IEEE 802 1Q
D. IEEE 802 1p
Answer: C
Explanation:
IEEE 802.1Q is the networking standard that supports virtual LANs (VLANs) on an Ethernet network. When a frame enters the VLAN-aware portion of the network (a trunk link, for example), a VLAN ID tag is added to represent the VLAN membership of that frame. The picture below shows how VLAN tag is added and removed while going through the network.
http://www.cisco.com/c/en/us/support/docs/lan-switching/8021q/17056-741-4.html
Q14. Which statement about static routes is true?
A. The source interface can be configured to make routing decisions.
B. A subnet mask is entered for the next-hop address.
C. The subnet mask is 255.255 255.0 by default
D. The exit interface can be specified to indicate where the packets will be routed.
Answer: D
Explanation:
Static routing can be used to define an exit point from a router when no other routes are available or necessary. This is called a default route.
Q15. Which Ethernet interface command is present when you boot a new Cisco router for the first time?
A. speed 100
B. shutdown
C. ip address 192.168.1.1 255.255.255.0
D. duplex half
Answer: B
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