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CCNA Updated

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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. What is the default bandwidth that EIGRP uses when no bandwidth is entered for an interface?
100
1544 kbps
Rollover
Unique local unicast range

2. What is the ipv6 loopback adddress?
Destined for a single interface
Examples and documentation
172.16.0.0 to 172.31.255.255
::1

3. FR multipoint subinterfaces must be on the ________ to forward route updates and broadcasts
Operational pvc
To configure a route form an ISP router into a corporate network
1 -2 - 5.5 - 11
Same subnet

4. Which command shows frame relay status and keep-alive information?
Unique local unicast range
No frame-relay inverse-arp
Triggered update - split horizon - route poisoning
Show frame-relay lmi

5. What command shows the status of PVC - FECN - BECN
No LMI is being received by the switch or there is no service between the CPE and frame switch
Sh frame-relay pvc
Network
Like private ipv4 address - but can't be routed at all

6. OSPF hello packets are sent to which address?
224.0.0.5
Sh frame-relay pvc
Local router - frame relay WAN
Like private ipv4 address - but can't be routed at all

7. What commands create plain-text ospf authentication?
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
Ip ospf authentication - ip ospf authentication-key XXXXX
100
Only in the address table

8. Which priveleged mode IOS command shows the state of the OSPF DR/BDR election process?
Ip addresses are conserved if vlsm is not used for subnetting
224.0.0.5
Sh ip ospf interface
It should be default-network

9. What does this command do: mac-address-table static MAC ADDRESS vlan 10 int f0/1

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10. tcp/udp port for FTP data
20
Device identifier - address list - port identifier - capabilites list - platform
1. must be configured with eigrp 2.must have interfaces directly connect or on multiaccess media 3.must have same ASN 4.must have appropriate network commands
<ctrl><shift>6 then x

11. IPv6 multicast address
Global unicast range
Destined for a single interface
10 seconds with every 6th message being a full status message
One to many addresses...always start with ff

12. What command kills telnet session #3?
No LMI is being received by the switch or there is no service between the CPE and frame switch
Disconnect 3
1 -2 - 5.5 - 11
23

13. What encryption does WPA2 use
Aes-ccmp
161
Ipv6 rip <process-name> enable
Sh frame-relay pvc

14. What command displays the CHAP authentication process in real time?
The mac address is inserted in the table for fa0/1 only - the switch doesn't need to lear this MAC address
Ipv6 unicast-routing
Leased lines
Debug ppp authentication

15. What are the three options for LMI in FR?
Q933a - cisco and ansi
100
The address is removed from the pool until the confilct is resolved.
<ctrl><shift>6 then x

16. What is the advantage of using multipoint interfaces instead of point to point subinterfaces in a frame hub and spoke config?
Nonbroadcast multi-access
Feature capabilities - hardware platform - run location and compression status
Ip addresses are conserved if vlsm is not used for subnetting
Device identifier - address list - port identifier - capabilites list - platform

17. tcp/udp port for SNMP
Sh frame-relay pvc
32 bits
161
By default

18. IPv6 anycast address
Ignore nvram (password recovery)
Highest logical interface IP - then highest configured IP
Only in the address table
One to first of many addresses

19. Which command shows only EIGRP routes?
Ripv2 is classless - multicasts - allows authentication
Used with 6 to 4
Sh ip route eigrp
32768

20. class c private addresses
192.168.0.0 to 192.168.255.255
23
161
Remote router's connection to the frame relay switch isn't working

21. How does ripv2 respond to topology changes?
Feature capabilities - hardware platform - run location and compression status
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
Boots to rommon

22. Name 2 reasons a serial connection can be in an up/down status?
Rollover
Aes-ccmp
Leased lines
Encapsulation mismatch and clock rate issues.

23. Which command shows pvc mappings between the router and the frame switch?
10.0.0.0 to 10.255.255.255
Q933a - cisco and ansi
DLCI to an IP address
Sh frame-relay pvc

24. IPv6 You can replace ______ contiguous block(s) of zeros with a double colon?
224.0.0.5
Compression - multilink support - authentication
One
Debug ppp authentication

25. Which features did wpav4 add to address the weaknesses of WEP?
Decimal - Hex
::1
Per frame sequence counters and key mixing using temporal keys.
Point to point

26. IPv6 FC00::/7
32 bits
Unique local unicast range
Sh frame-relay pvc
1. must be configured with eigrp 2.must have interfaces directly connect or on multiaccess media 3.must have same ASN 4.must have appropriate network commands

27. Which command shows pvc mappings between the router and the frame switch?
Sh frame-relay pvc
Decimal - Hex
Q933a - cisco and ansi
Same subnet

28. Which command suspends a telnet session?
<ctrl><shift>6 then x
Sh ip eigrp neighbors
Decimal - Hex
Boots to rommon

29. tcp/udp port for telnet
23
20
Debug ppp authentication
Multicast range

30. Which command disables frame-relay inverse arp?
Sh arp and sh int
Sh frame-relay pvc
No frame-relay inverse-arp
Sh ip ospf interface

31. IPv6 3FFF:FFFF::/32
Ripv2 is classless - multicasts - allows authentication
Examples and documentation
Rollover
23

32. What is the LMI DLCI used in ANSI?
53
Access-class
::1 same as 127.0.0.1
0

33. IPv6 unicast address
Destined for a single interface
Used with 6 to 4
Local router - frame relay WAN
Highest logical interface IP - then highest configured IP

34. What does ripv2 do to prevent routing loops?
Debug ip icmp
32768
Aes-ccmp
Split horizon and holddown timers

35. Which command turns on IPv6 routing?
Operational pvc
One to many addresses...always start with ff
Ipv6 unicast-routing
192.168.0.0 to 192.168.255.255

36. What does a frame relay pvc status of inactive indicate?
The pvc is correctly configured - but there is an issue on the remote end of the pvc.
Operational pvc
No frame-relay inverse-arp
No frame-relay inverse-arp

37. How long is an IPv6 address?
128 bits
Remote router's connection to the frame relay switch isn't working
Feature capabilities - hardware platform - run location and compression status
Operational pvc

38. What is the frame relay inactive state?

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39. What can you utilize by using PPP layer 2 encapsulation?
Compression - multilink support - authentication
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz
Arp for the host
Decimal - Hex

40. class b private addresses
172.16.0.0 to 172.31.255.255
23
::1
10 seconds with every 6th message being a full status message

41. What command is used to debug the ping command?
<ctrl><shift>6 then x
1 -2 - 5.5 - 11
Debug ip icmp
::1

42. How often do LMI messages flow?
The pvc is correctly configured - but there is an issue on the remote end of the pvc.
Sh ip eigrp neighbors
Access-class
10 seconds with every 6th message being a full status message

43. tcp/udp port for DNS
53
It should be default-network
Feature capabilities - hardware platform - run location and compression status
Ipv6 rip <process-name> enable

44. Dynamic secure mac addresses are stored...
Only in the address table
DSSS
53
Bypass startup config - initial config mode - password recovery

45. What is the command to use an ACL for VTY access
By default
No frame-relay inverse-arp
0
Access-class

46. Static secure mac addresses are stored...
Global unicast range
Only in the address table
In the address table and added to the running config
Sh arp and sh int

47. confreg 2120
Rommon
Examples and documentation
Network
Compression - multilink support - authentication

48. Which command assigns an IPv6 address to an interface?
Ip ospf authentication - ip ospf authentication-key XXXXX
Show frame-relay lmi
Ipv6 address 2001:0:1:0::2/64 (example)
Local router - frame relay WAN

49. tcp/udp port for POP3
100
Private address. Can be routed locally - but not on Internet
Sh frame-relay map
Sh ip int [interface]

50. What command shows the amount of memory being used and whether there is enough room to load a new image?
128 bits
Sh flash
Point to point
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