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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 can you utilize by using PPP layer 2 encapsulation?
Compression - multilink support - authentication
One to many addresses...always start with ff
Show frame-relay lmi
FECN - BECN - DE

2. What is wrong with this command 'ip default-route 10.1.1.1'?
Sh ip eigrp neighbors
It should be default-network
Debug ip icmp
Global unicast range

3. tcp/udp port for POP3
Root and designated
100
Sh frame-relay pvc
FECN - BECN - DE

4. What command kills telnet session #3?
Sh arp and sh int
Disconnect 3
100
To provide routing to a destination not specified in the routing table and is outside the local network

5. What commands create md5 encrypted ospf authentication?
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz
23
Local router - frame relay WAN
Used with 6 to 4

6. Which command disables frame-relay inverse arp?
No frame-relay inverse-arp
Network
Sh frame-relay pvc
Pap and chap

7. What is the first action that a host will take when sending data to a host on a different network?
<ctrl><shift>6 then x
Ipv6 rip <process-name> enable
Ipv4 address in a mixed environment
Arp for the host

8. IPv6 3FFF:FFFF::/32
Sh frame-relay traffic
Used with 6 to 4
Examples and documentation
Sh frame-relay pvc

9. Which command shows frame relay status and keep-alive information?
Show frame-relay lmi
Point to point
Leased lines
Publicly routable addresses

10. Which command shows the IP of adjacent EIGRP neighbors as well as the retransmit intervals and queue counts?
Sh ip eigrp neighbors
::1 same as 127.0.0.1
Private address. Can be routed locally - but not on Internet
32768

11. What is the LMI DLCI used in ANSI?
Sh ip int [interface]
20
Same as ::...same as 0.0.0.0
0

12. IPv6 0:0:0:0:0:0:0:0
Same as ::...same as 0.0.0.0
Ipv4 address in a mixed environment
The address is removed from the pool until the confilct is resolved.
By default

13. Which features did wpav4 add to address the weaknesses of WEP?
120
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
Encapsulation mismatch and clock rate issues.

14. IPv6 unique local address
Point to point
20
Private address. Can be routed locally - but not on Internet
10 seconds with every 6th message being a full status message

15. What does config register 0x2100 do?
Leased lines
69
Boots to rommon
Per frame sequence counters and key mixing using temporal keys.

16. name a situation where a default route would be appropriate...
To provide routing to a destination not specified in the routing table and is outside the local network
No frame-relay inverse-arp
Sh ip int [interface]
Private address. Can be routed locally - but not on Internet

17. How does ripv2 respond to topology changes?
Sh vtp status
Triggered update - split horizon - route poisoning
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
Like private ipv4 address - but can't be routed at all

18. What command shows the status of PVC - FECN - BECN
Link-local unicast range
One to many addresses...always start with ff
By default
Sh frame-relay pvc

19. Which command suspends a telnet session?
<ctrl><shift>6 then x
It should be default-network
Only in the address table
Ip addresses are conserved if vlsm is not used for subnetting

20. What criteria does OSPF use to determine RID?
Sh frame-relay traffic
Highest logical interface IP - then highest configured IP
Sh ip ospf interface
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp

21. Which two wireless encryption methods are based on RC4?
TKIP and WEP
Device identifier - address list - port identifier - capabilites list - platform
Used with 6 to 4
Encapsulation mismatch and clock rate issues.

22. what 3 things can be deduced from the IOS image file name?
Feature capabilities - hardware platform - run location and compression status
Rollover
To configure a route form an ISP router into a corporate network
In the address table and added to the running config

23. confreg 2120
The pvc is correctly configured - but there is an issue on the remote end of the pvc.
Rommon
10.0.0.0 to 10.255.255.255
Access-class

24. Which 2 commands show IP address associated with a MAC address
One
Private address. Can be routed locally - but not on Internet
Sh arp and sh int
53

25. Which command shows mac addresses of stations connected to switch ports?
Show arp
::1 same as 127.0.0.1
Root and designated
Sh frame-relay pvc

26. What 2 features did WPAV1 add to address WEP's weaknesses?
53
Decimal - Hex
Per frame sequence counters and key mixing using temporal keys.
69

27. What command determines if frame relay inverse arp resolved a remote IP address to a local DLCI on a multipoint interface or a subinterface?
Arp for the host
Sh frame-relay map
128 bits
Operational pvc

28. What does ripv2 do to prevent routing loops?
To provide routing to a destination not specified in the routing table and is outside the local network
Split horizon and holddown timers
Show frame-relay lmi
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp

29. By default - FR is classified as what type of physical network?
<ctrl><shift>6 then x
Nonbroadcast multi-access
No LMI is being received by the switch or there is no service between the CPE and frame switch
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz

30. tcp/udp port for telnet
128 bits
161
Sh flash
23

31. What type of frame subinterface do you use for hub and spoke?
Point to point
Multicast range
Disconnect 3
Sh frame-relay map

32. Which command turns on IPv6 routing?
Ipv6 unicast-routing
Leased lines
1023
Disconnect 3

33. Which command shows global frame relay stats since the last router reload?
Same subnet
Show frame-relay lmi
Sh frame-relay traffic
69

34. What rule does dhcp use when an IP address conflict is detected?
1 - 2 - 5.5 - 11
Show frame-relay lmi
In the address table and added to the running config
The address is removed from the pool until the confilct is resolved.

35. What is the LMI DLCI used in Cisco?
Link establishment - optional authentication - network layer protocol
One to first of many addresses
1023
By default

36. IPv6 2001:0DB8::/32
The pvc is correctly configured - but there is an issue on the remote end of the pvc.
Ip addresses are conserved if vlsm is not used for subnetting
Examples and documentation
Rommon

37. ipv6 global addresses start with ...
2000::/3
Bypass startup config - initial config mode - password recovery
DSSS
Sh frame-relay map

38. What is the frame relay deleted state?
Sh frame-relay pvc
No LMI is being received by the switch or there is no service between the CPE and frame switch
Triggered update - split horizon - route poisoning
Sh ip eigrp neighbors

39. What is the default AD for RIP
Publicly routable addresses
TKIP and WEP
120
Ripv2 is classless - multicasts - allows authentication

40. Which 2 port roles forward traffic under 802.1w standard?
Root and designated
DLCI to an IP address
10.0.0.0 to 10.255.255.255
32768

41. IPv6 2000::/3
Global unicast range
Boots to rommon
Network
Sh ip ospf interface

42. tcp/udp port for FTP control
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
21
Ipv4 address in a mixed environment
In the address table and added to the running config

43. How often do LMI messages flow?
Aes-ccmp
Remote router's connection to the frame relay switch isn't working
10 seconds with every 6th message being a full status message
224.0.0.5

44. OSPF hello packets are sent to which address?
Debug ppp authentication
23
224.0.0.5
Link establishment - optional authentication - network layer protocol

45. IPv6 global unicast addresses
Publicly routable addresses
Access-class
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
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match

46. What is the order of preference in a routing table?
<ctrl><shift>6 then x
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
One to many addresses...always start with ff
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp

47. IPv6 2002::/16
No frame-relay inverse-arp
Used with 6 to 4
Ripv2 is classless - multicasts - allows authentication
DLCI to an IP address

48. Which command shows frame relay status and keep-alive information?
Per frame sequence counters and key mixing using temporal keys.
Show frame-relay lmi
100
In the address table and added to the running config

49. What are the three types of congestion notification used by frame relay?
Sh ip eigrp neighbors
FECN - BECN - DE
Sh frame-relay pvc
Q933a - cisco and ansi

50. EIGRP summarizes at class boundaries...
By default
1544 kbps
To provide routing to a destination not specified in the routing table and is outside the local network
20

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