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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. 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
In the address table and added to the running config
Like private ipv4 address - but can't be routed at all
Sh frame-relay map

2. What does ripv2 do to prevent routing loops?
Split horizon and holddown timers
Compression - multilink support - authentication
Q933a - cisco and ansi
Sh ip ospf interface

3. What does a frame relay pvc status of inactive indicate?
Debug ip icmp
53
The pvc is correctly configured - but there is an issue on the remote end of the pvc.
Aes-ccmp

4. What command determines if frame relay inverse arp resolved a remote IP address to a local DLCI on a multipoint interface or a subinterface?
<ctrl><shift>6 then x
2000::/3
It should be default-network
Sh frame-relay map

5. How long is an IPv6 address?
Sh frame-relay pvc
Highest logical interface IP - then highest configured IP
224.0.0.5
128 bits

6. EIGRP summarizes at class boundaries...
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz
Split horizon and holddown timers
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
By default

7. Dynamic secure mac addresses are stored...
Bypass startup config - initial config mode - password recovery
The mac address is inserted in the table for fa0/1 only - the switch doesn't need to lear this MAC address
No LMI is being received by the switch or there is no service between the CPE and frame switch
Only in the address table

8. FR multipoint subinterfaces must be on the ________ to forward route updates and broadcasts
DLCI to an IP address
Pap and chap
Same subnet
172.16.0.0 to 172.31.255.255

9. What is the ipv6 loopback address?
Bypass startup config - initial config mode - password recovery
Used with 6 to 4
::1
DLCI to an IP address

10. Which priveleged mode IOS command shows the state of the OSPF DR/BDR election process?
0
23
Arp for the host
Sh ip ospf interface

11. What command is used to debug the ping command?
21
32 bits
DLCI to an IP address
Debug ip icmp

12. Which command disables frame-relay inverse arp?
10 seconds with every 6th message being a full status message
No frame-relay inverse-arp
2000::/3
Ipv6 unicast-routing

13. Which command shows frame relay status and keep-alive information?
1 -2 - 5.5 - 11
Show frame-relay lmi
Sh frame-relay pvc
Private address. Can be routed locally - but not on Internet

14. What type of frame subinterface do you use for hub and spoke?
Ipv6 address 2001:0:1:0::2/64 (example)
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz
Point to point
1544 kbps

15. Which command assigns an IPv6 address to an interface?
To configure a route form an ISP router into a corporate network
Sh flash
Ipv6 address 2001:0:1:0::2/64 (example)
Ipv4 address in a mixed environment

16. Which command shows frame relay status and keep-alive information?
Examples and documentation
It should be default-network
Show frame-relay lmi
192.168.0.0 to 192.168.255.255

17. IPv6 FC00::/7
10.0.0.0 to 10.255.255.255
One
Unique local unicast range
20

18. IPv6 unicast address
Decimal - Hex
Destined for a single interface
Multicast range
Sh arp and sh int

19. Inverse ARP maps a ______ to a ________
DLCI to an IP address
One to many addresses...always start with ff
::1
TKIP and WEP

20. IPv6 FF00::/8
Multicast range
TKIP and WEP
Sh ip int [interface]
Sh frame-relay pvc

21. What type of cable connects the router's aux port to a modem?
Ip addresses are conserved if vlsm is not used for subnetting
Sh arp and sh int
::1
Rollover

22. What speeds must be disabled in mixed 802.11b/g WLAN to allow only G clients to connect?
2102
1 - 2 - 5.5 - 11
No LMI is being received by the switch or there is no service between the CPE and frame switch
Per frame sequence counters and key mixing using temporal keys.

23. IPv6 global unicast addresses
Sh ip route eigrp
Yes
2102
Publicly routable addresses

24. What command shows the status of PVC - FECN - BECN
Publicly routable addresses
0
Sh frame-relay pvc
Ipv6 unicast-routing

25. IPv6 multicast address
One to many addresses...always start with ff
Aes-ccmp
Rollover
Leased lines

26. ipv6 global addresses start with ...
Ipv6 address 2001:0:1:0::2/64 (example)
Sh frame-relay pvc
2000::/3
Split horizon and holddown timers

27. Which command shows the IP of adjacent EIGRP neighbors as well as the retransmit intervals and queue counts?
Per frame sequence counters and key mixing using temporal keys.
Sh ip eigrp neighbors
Multicast range
::1

28. name a situation where a default route would be appropriate...
Access-class
224.0.0.5
Ipv6 address 2001:0:1:0::2/64 (example)
To provide routing to a destination not specified in the routing table and is outside the local network

29. IPv4 addresses are represented in _____ while IPv6 addresses are represented in ______.
No frame-relay inverse-arp
Decimal - Hex
Unique local unicast range
Ripv2 is classless - multicasts - allows authentication

30. What can you utilize by using PPP layer 2 encapsulation?
The address is removed from the pool until the confilct is resolved.
The mac address is inserted in the table for fa0/1 only - the switch doesn't need to lear this MAC address
Compression - multilink support - authentication
Debug ppp authentication

31. Which two wireless encryption methods are based on RC4?
::1 same as 127.0.0.1
TKIP and WEP
Link establishment - optional authentication - network layer protocol
Q933a - cisco and ansi

32. IPv6 0:0:0:0:0:0:0:1
Link-local unicast range
Used with 6 to 4
Operational pvc
::1 same as 127.0.0.1

33. How often do LMI messages flow?
10 seconds with every 6th message being a full status message
Multicast range
161
To configure a route form an ISP router into a corporate network

34. What 2 features did WPAV1 add to address WEP's weaknesses?
Yes
Show frame-relay lmi
Per frame sequence counters and key mixing using temporal keys.
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

35. How long is an IPv4 address?
Access-class
Sh frame-relay traffic
By default
32 bits

36. tcp/udp port for SNMP
161
One to first of many addresses
Root and designated
Point to point

37. Which command shows pvc mappings between the router and the frame switch?
::1
Link-local unicast range
Sh frame-relay pvc
No frame-relay inverse-arp

38. Which 2 commands show IP address associated with a MAC address
2102
Per frame sequence counters and key mixing using temporal keys.
Sh arp and sh int
Sh frame-relay traffic

39. Which command shows global frame relay stats since the last router reload?
DLCI to an IP address
Sh frame-relay traffic
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz
Per frame sequence counters and key mixing using temporal keys.

40. At which layer should you begin troubleshooting QOS issues?
<ctrl><shift>6 then x
Operational pvc
Network
Sh vtp status

41. What is the advantage of using multipoint interfaces instead of point to point subinterfaces in a frame hub and spoke config?
Show arp
Ipv6 address 2001:0:1:0::2/64 (example)
Ip addresses are conserved if vlsm is not used for subnetting
224.0.0.5

42. What is the frame relay deleted state?
Rommon
Operational pvc
1 - 2 - 5.5 - 11
No LMI is being received by the switch or there is no service between the CPE and frame switch

43. Static secure mac addresses are stored...
10 seconds with every 6th message being a full status message
In the address table and added to the running config
Sh flash
Private address. Can be routed locally - but not on Internet

44. What is the default bridge STP priority?
Per frame sequence counters and key mixing using temporal keys.
Boots to rommon
161
32768

45. What sequence of commands creates encrypted eigrp authentication
The address is removed from the pool until the confilct is resolved.
Link establishment - optional authentication - network layer protocol
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
Ignore nvram (password recovery)

46. What command displays the CHAP authentication process in real time?
DSSS
Sh frame-relay pvc
Debug ppp authentication
Publicly routable addresses

47. confreg 2142
69
Boots to rommon
Sh frame-relay pvc
Ignore nvram (password recovery)

48. What is the command to use an ACL for VTY access
Access-class
By default
Show frame-relay lmi
Ip ospf authentication - ip ospf authentication-key XXXXX

49. udp port for DNS
0
Disconnect 3
::1
53

50. IPv6 link-local address

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