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CCNA Updated

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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 commands create md5 encrypted ospf authentication?
Ipv6 address 2001:0:1:0::2/64 (example)
Sh frame-relay map
Sh vtp status
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz

2. What type of frame subinterface do you use for hub and spoke?
Point to point
Per frame sequence counters and key mixing using temporal keys.
Sh flash
25

3. What information is supplied by CDP? (5)
Device identifier - address list - port identifier - capabilites list - platform
Boots to rommon
Like private ipv4 address - but can't be routed at all
1023

4. What command is used to debug the ping command?
Show arp
Debug ip icmp
Boots to rommon
Sh ip eigrp neighbors

5. Which command disables frame-relay inverse arp?
::1
No frame-relay inverse-arp
Decimal - Hex
By default

6. Differences between ripv1 and ripv2
::1 same as 127.0.0.1
Ripv2 is classless - multicasts - allows authentication
Sh frame-relay pvc
10 seconds with every 6th message being a full status message

7. What is wrong with this command 'ip default-route 10.1.1.1'?
Decimal - Hex
::1 same as 127.0.0.1
No frame-relay inverse-arp
It should be default-network

8. tcp/udp port for SMTP
Nonbroadcast multi-access
25
No frame-relay inverse-arp
Ripv2 is classless - multicasts - allows authentication

9. What is the ipv6 loopback address?
Sh ip route eigrp
10 seconds with every 6th message being a full status message
::1
192.168.0.0 to 192.168.255.255

10. IPv6 FC00::/7
2000::/3
Unique local unicast range
Rollover
FECN - BECN - DE

11. What is the frame relay inactive state?

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12. What is the frame relay deleted state?
Operational pvc
Disconnect 3
Access-class
No LMI is being received by the switch or there is no service between the CPE and frame switch

13. By default - FR is classified as what type of physical network?
Sh ip ospf interface
::1
21
Nonbroadcast multi-access

14. Which command suspends a telnet session?
0
<ctrl><shift>6 then x
Sh frame-relay traffic
Publicly routable addresses

15. IPv6 2002::/16
10 seconds with every 6th message being a full status message
Only in the address table
Show frame-relay lmi
Used with 6 to 4

16. What criteria does OSPF use to determine RID?
Highest logical interface IP - then highest configured IP
Ripv2 is classless - multicasts - allows authentication
25
::1

17. IPv6 anycast address
Access-class
Device identifier - address list - port identifier - capabilites list - platform
224.0.0.5
One to first of many addresses

18. What does ripv2 do to prevent routing loops?
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
Split horizon and holddown timers
Per frame sequence counters and key mixing using temporal keys.
Highest logical interface IP - then highest configured IP

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

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20. Which command shows the IP of adjacent EIGRP neighbors as well as the retransmit intervals and queue counts?
Ripv2 is classless - multicasts - allows authentication
Ipv6 address 2001:0:1:0::2/64 (example)
Sh ip eigrp neighbors
Network

21. Which priveleged mode IOS command shows the state of the OSPF DR/BDR election process?
Aes-ccmp
No LMI is being received by the switch or there is no service between the CPE and frame switch
Q933a - cisco and ansi
Sh ip ospf interface

22. What speeds must be disabled in mixed 802.11b/g WLAN to allow only G clients to connect?
DLCI to an IP address
FECN - BECN - DE
1 - 2 - 5.5 - 11
Sh frame-relay pvc

23. tcp/udp port for TFTP
Leased lines
69
Device identifier - address list - port identifier - capabilites list - platform
TKIP and WEP

24. class b private addresses
Ip addresses are conserved if vlsm is not used for subnetting
Sh vtp status
172.16.0.0 to 172.31.255.255
10.0.0.0 to 10.255.255.255

25. What rule does dhcp use when an IP address conflict is detected?
The address is removed from the pool until the confilct is resolved.
Aes-ccmp
Show frame-relay lmi
To configure a route form an ISP router into a corporate network

26. IPv4 addresses are represented in _____ while IPv6 addresses are represented in ______.
2102
Point to point
Decimal - Hex
::1

27. Which 2 commands show IP address associated with a MAC address
::1
Sh arp and sh int
Publicly routable addresses
The pvc is correctly configured - but there is an issue on the remote end of the pvc.

28. IPv6 0:0:0:0:0:0:0:0
Sh ip eigrp neighbors
Same as ::...same as 0.0.0.0
Private address. Can be routed locally - but not on Internet
20

29. What is the command to use an ACL for VTY access
By default
21
Access-class
Root and designated

30. What spread spectrum technology does 802.11b use?
Sh ip eigrp neighbors
1023
Sh frame-relay traffic
DSSS

31. What can you utilize by using PPP layer 2 encapsulation?
Compression - multilink support - authentication
Ipv6 rip <process-name> enable
Rommon
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp

32. Which command turns on IPv6 routing?
Per frame sequence counters and key mixing using temporal keys.
Ipv6 unicast-routing
Sh frame-relay pvc
Ripv2 is classless - multicasts - allows authentication

33. What command determines if frame relay inverse arp resolved a remote IP address to a local DLCI on a multipoint interface or a subinterface?
2000::/3
No frame-relay inverse-arp
Local router - frame relay WAN
Sh frame-relay map

34. How often do LMI messages flow?
Sh frame-relay traffic
Leased lines
10 seconds with every 6th message being a full status message
192.168.0.0 to 192.168.255.255

35. What 2 features did WPAV1 add to address WEP's weaknesses?
Ripv2 is classless - multicasts - allows authentication
Remote router's connection to the frame relay switch isn't working
Per frame sequence counters and key mixing using temporal keys.
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp

36. What is the advantage of using multipoint interfaces instead of point to point subinterfaces in a frame hub and spoke config?
120
Aes-ccmp
Ip addresses are conserved if vlsm is not used for subnetting
Ripv2 is classless - multicasts - allows authentication

37. tcp/udp port for POP3
Sh frame-relay traffic
100
Debug ppp authentication
Sh vtp status

38. tcp/udp port for FTP control
Sh frame-relay traffic
21
The address is removed from the pool until the confilct is resolved.
Per frame sequence counters and key mixing using temporal keys.

39. What type of cable connects the router's aux port to a modem?
Only in the address table
Boots to rommon
192.168.0.0 to 192.168.255.255
Rollover

40. IPv6 unicast address
Ip addresses are conserved if vlsm is not used for subnetting
::1
Destined for a single interface
Sh ip int [interface]

41. tcp/udp port for DNS
53
Remote router's connection to the frame relay switch isn't working
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
Nonbroadcast multi-access

42. class a private addresses
10.0.0.0 to 10.255.255.255
Examples and documentation
The address is removed from the pool until the confilct is resolved.
Sh vtp status

43. 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
Ip addresses are conserved if vlsm is not used for subnetting
Decimal - Hex
Encapsulation mismatch and clock rate issues.

44. ipv6 global addresses start with ...
<ctrl><shift>6 then x
32 bits
DSSS
2000::/3

45. Frame relay point to point interfaces emulate _______
Debug ppp authentication
Access-class
Examples and documentation
Leased lines

46. EIGRP summarizes at class boundaries...
Sh frame-relay pvc
Sh ip route eigrp
By default
Sh ip int [interface]

47. What command displays the CHAP authentication process in real time?
Q933a - cisco and ansi
Debug ppp authentication
No frame-relay inverse-arp
The pvc is correctly configured - but there is an issue on the remote end of the pvc.

48. What is the LMI DLCI used in Cisco?
Sh frame-relay map
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 pvc
1023

49. What 3 things are necessary for 2 routers to establish ospf neighborship?
Leased lines
Like private ipv4 address - but can't be routed at all
Same as ::...same as 0.0.0.0
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match

50. tcp/udp port for telnet
23
Used with 6 to 4
Root and designated
Encapsulation mismatch and clock rate issues.

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