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CCNA Updated

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Which command turns on IPv6 routing?
Ipv6 unicast-routing
Sh ip route eigrp
Remote router's connection to the frame relay switch isn't working
Leased lines

2. Which command shows global frame relay stats since the last router reload?
Ignore nvram (password recovery)
Yes
The mac address is inserted in the table for fa0/1 only - the switch doesn't need to lear this MAC address
Sh frame-relay traffic

3. What commands create plain-text ospf authentication?
Sh frame-relay map
Sh ip route eigrp
Ip ospf authentication - ip ospf authentication-key XXXXX
Ip addresses are conserved if vlsm is not used for subnetting

4. How long is an IPv6 address?
Ignore nvram (password recovery)
128 bits
Triggered update - split horizon - route poisoning
Feature capabilities - hardware platform - run location and compression status

5. Which command shows if an acl is applied to an interface?
Examples and documentation
Sh frame-relay pvc
Sh ip int [interface]
Sh ip eigrp neighbors

6. What is the advantage of using multipoint interfaces instead of point to point subinterfaces in a frame hub and spoke config?
Show frame-relay lmi
Ip addresses are conserved if vlsm is not used for subnetting
Sh flash
69

7. What is the default configuration register setting?
Yes
2000::/3
2102
To configure a route form an ISP router into a corporate network

8. What are the two ppp authentication methods?
Sh ip ospf interface
Yes
1544 kbps
Pap and chap

9. What type of frame subinterface do you use for hub and spoke?
::1
Encapsulation mismatch and clock rate issues.
Debug ip icmp
Point to point

10. Which command shows pvc mappings between the router and the frame switch?
100
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
Conf t - key chain MyKeyChain1 - key 1 - key-string sanjose - int s0/0 - ip authentication mode eigrp 100 md5 - ip authentication key-chain eigrp 100 MyKeyChain1
Sh frame-relay pvc

11. What rule does dhcp use when an IP address conflict is detected?
The address is removed from the pool until the confilct is resolved.
In the address table and added to the running config
Rollover
Ipv4 address in a mixed environment

12. How long is an IPv4 address?
Per frame sequence counters and key mixing using temporal keys.
32 bits
Ip addresses are conserved if vlsm is not used for subnetting
Sh ip eigrp neighbors

13. IPv6 FC00::/7
Per frame sequence counters and key mixing using temporal keys.
0
Bypass startup config - initial config mode - password recovery
Unique local unicast range

14. What is the default AD for RIP
120
25
53
The address is removed from the pool until the confilct is resolved.

15. How does ripv2 respond to topology changes?
2000::/3
Leased lines
Triggered update - split horizon - route poisoning
Unique local unicast range

16. What 3 things are necessary for 2 routers to establish ospf neighborship?
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
Ipv6 rip <process-name> enable
Sh frame-relay traffic
The address is removed from the pool until the confilct is resolved.

17. name a situation where a default route would be appropriate...
53
Device identifier - address list - port identifier - capabilites list - platform
Sh ip int [interface]
To provide routing to a destination not specified in the routing table and is outside the local network

18. What is the ipv6 loopback adddress?
Sh vtp status
::1
TKIP and WEP
Ipv6 address 2001:0:1:0::2/64 (example)

19. What spread spectrum technology does 802.11b use?
DSSS
Highest logical interface IP - then highest configured IP
::1
Same as ::...same as 0.0.0.0

20. IPv6 2002::/16
Like private ipv4 address - but can't be routed at all
Yes
Point to point
Used with 6 to 4

21. What does config register 0x2100 do?
Boots to rommon
Split horizon and holddown timers
0
Nonbroadcast multi-access

22. class c private addresses
Per frame sequence counters and key mixing using temporal keys.
161
192.168.0.0 to 192.168.255.255
Like private ipv4 address - but can't be routed at all

23. What is the frame relay inactive state?

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24. What are the three options for LMI in FR?
Examples and documentation
Q933a - cisco and ansi
Remote router's connection to the frame relay switch isn't working
Rollover

25. tcp/udp port for SNMP
1544 kbps
Encapsulation mismatch and clock rate issues.
161
Sh ip int [interface]

26. IPv6 FE80::/10
Link-local unicast range
Split horizon and holddown timers
Ip ospf authentication - ip ospf authentication-key XXXXX
No frame-relay inverse-arp

27. What command shows the status of PVC - FECN - BECN
Sh frame-relay pvc
Encapsulation mismatch and clock rate issues.
32 bits
Only in the address table

28. What is wrong with this command 'ip default-route 10.1.1.1'?
It should be default-network
No frame-relay inverse-arp
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
120

29. What command shows the amount of memory being used and whether there is enough room to load a new image?
21
Sh ip eigrp neighbors
No frame-relay inverse-arp
Sh flash

30. What sequence of commands creates encrypted eigrp authentication
Only in the address table
100
Same as ::...same as 0.0.0.0
Conf t - key chain MyKeyChain1 - key 1 - key-string sanjose - int s0/0 - ip authentication mode eigrp 100 md5 - ip authentication key-chain eigrp 100 MyKeyChain1

31. Which priveleged mode IOS command shows the state of the OSPF DR/BDR election process?
Ignore nvram (password recovery)
Sh ip ospf interface
In the address table and added to the running config
Per frame sequence counters and key mixing using temporal keys.

32. At which layer should you begin troubleshooting QOS issues?
Network
Triggered update - split horizon - route poisoning
No LMI is being received by the switch or there is no service between the CPE and frame switch
Nonbroadcast multi-access

33. Inverse ARP maps a ______ to a ________
Only in the address table
Network
Disconnect 3
DLCI to an IP address

34. Which command shows the IP of adjacent EIGRP neighbors as well as the retransmit intervals and queue counts?
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
Nonbroadcast multi-access
Sh ip eigrp neighbors
Per frame sequence counters and key mixing using temporal keys.

35. Static secure mac addresses are stored...
23
Show frame-relay lmi
In the address table and added to the running config
Show frame-relay lmi

36. IPv6 global unicast addresses
Rommon
Boots to rommon
Publicly routable addresses
Ripv2 is classless - multicasts - allows authentication

37. What does config register 0x2142 do?
2000::/3
Q933a - cisco and ansi
Bypass startup config - initial config mode - password recovery
::1 same as 127.0.0.1

38. What can you utilize by using PPP layer 2 encapsulation?
Pap and chap
Like private ipv4 address - but can't be routed at all
Compression - multilink support - authentication
Used with 6 to 4

39. OSPF hello packets are sent to which address?
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
224.0.0.5
Operational pvc
Split horizon and holddown timers

40. What is the ipv6 loopback address?
Conf t - key chain MyKeyChain1 - key 1 - key-string sanjose - int s0/0 - ip authentication mode eigrp 100 md5 - ip authentication key-chain eigrp 100 MyKeyChain1
To provide routing to a destination not specified in the routing table and is outside the local network
::1
FECN - BECN - DE

41. IPv6 link-local address

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42. How often do LMI messages flow?
Global unicast range
10 seconds with every 6th message being a full status message
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz
The address is removed from the pool until the confilct is resolved.

43. What command is used to debug the ping command?
Sh ip ospf interface
Sh frame-relay pvc
Debug ip icmp
20

44. Which command shows frame relay status and keep-alive information?
Show frame-relay lmi
Show arp
In the address table and added to the running config
Multicast range

45. what 3 things can be deduced from the IOS image file name?
Feature capabilities - hardware platform - run location and compression status
No frame-relay inverse-arp
32 bits
Per frame sequence counters and key mixing using temporal keys.

46. Which command shows only EIGRP routes?
Sh ip route eigrp
::1 same as 127.0.0.1
Operational pvc
Multicast range

47. tcp/udp port for FTP data
Network
20
Ignore nvram (password recovery)
Per frame sequence counters and key mixing using temporal keys.

48. Which speeds must be disabled in a mixed 801.11b/g WLAN to all only 802.11g clients to connect?
1 -2 - 5.5 - 11
Q933a - cisco and ansi
Conf t - key chain MyKeyChain1 - key 1 - key-string sanjose - int s0/0 - ip authentication mode eigrp 100 md5 - ip authentication key-chain eigrp 100 MyKeyChain1
Debug ip icmp

49. what command shows which vtp server updated the switch
Sh arp and sh int
Sh vtp status
No frame-relay inverse-arp
Sh ip int [interface]

50. What command kills telnet session #3?
Ip addresses are conserved if vlsm is not used for subnetting
Disconnect 3
53
Show arp