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CCNA Updated

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. udp port for DNS
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
Bypass startup config - initial config mode - password recovery
53
Link establishment - optional authentication - network layer protocol

2. What 4 things are necessary for 2 routers to form an eigrp relationship?
128 bits
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
Leased lines
Global unicast range

3. What command displays the CHAP authentication process in real time?
The address is removed from the pool until the confilct is resolved.
120
Sh ip int [interface]
Debug ppp authentication

4. What rule does dhcp use when an IP address conflict is detected?
TKIP and WEP
The address is removed from the pool until the confilct is resolved.
It should be default-network
192.168.0.0 to 192.168.255.255

5. What is the advantage of using multipoint interfaces instead of point to point subinterfaces in a frame hub and spoke config?
DLCI to an IP address
Ip addresses are conserved if vlsm is not used for subnetting
Device identifier - address list - port identifier - capabilites list - platform
Point to point

6. what command shows which vtp server updated the switch
Sh vtp status
0
Examples and documentation
Sh frame-relay pvc

7. What is the default bridge STP priority?
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
In the address table and added to the running config
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
32768

8. Static secure mac addresses are stored...
In the address table and added to the running config
DLCI to an IP address
2000::/3
Per frame sequence counters and key mixing using temporal keys.

9. tcp/udp port for TFTP
69
In the address table and added to the running config
Rollover
21

10. Frame relay point to point interfaces emulate _______
20
One
Leased lines
Ipv6 unicast-routing

11. Which command shows global frame relay stats since the last router reload?
Sh frame-relay traffic
2000::/3
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

12. What commands create md5 encrypted ospf authentication?
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz
Bypass startup config - initial config mode - password recovery
1023
Destined for a single interface

13. What is the frame relay active state?
Local router - frame relay WAN
Same as ::...same as 0.0.0.0
Operational pvc
Arp for the host

14. Which command shows pvc mappings between the router and the frame switch?
Link-local unicast range
Sh arp and sh int
Sh frame-relay pvc
Debug ip icmp

15. What is the LMI DLCI used in Cisco?
The pvc is correctly configured - but there is an issue on the remote end of the pvc.
Feature capabilities - hardware platform - run location and compression status
Compression - multilink support - authentication
1023

16. What does config register 0x2100 do?
DSSS
Boots to rommon
Multicast range
Sh vtp status

17. IPv6 FC00::/7
Access-class
Examples and documentation
Unique local unicast range
TKIP and WEP

18. confreg 2120
Rommon
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
Device identifier - address list - port identifier - capabilites list - platform

19. Which 2 port roles forward traffic under 802.1w standard?
Root and designated
Compression - multilink support - authentication
Private address. Can be routed locally - but not on Internet
Same as ::...same as 0.0.0.0

20. What command determines if frame relay inverse arp resolved a remote IP address to a local DLCI on a multipoint interface or a subinterface?
Sh frame-relay map
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
Split horizon and holddown timers
25

21. What can you utilize by using PPP layer 2 encapsulation?
Sh ip ospf interface
Ipv4 address in a mixed environment
Compression - multilink support - authentication
Ripv2 is classless - multicasts - allows authentication

22. confreg 2142
23
Compression - multilink support - authentication
Ignore nvram (password recovery)
25

23. What information is supplied by CDP? (5)
Device identifier - address list - port identifier - capabilites list - platform
Sh frame-relay pvc
Sh vtp status
Leased lines

24. Sticky secure mac addresses are stored...
In the address table and added to the running config
One to many addresses...always start with ff
1023
<ctrl><shift>6 then x

25. What type of cable connects the router's aux port to a modem?
Triggered update - split horizon - route poisoning
Rollover
Multicast range
The address is removed from the pool until the confilct is resolved.

26. Dynamic secure mac addresses are stored...
Sh ip int [interface]
10.0.0.0 to 10.255.255.255
Only in the address table
Ipv6 rip <process-name> enable

27. What is the command to use an ACL for VTY access
128 bits
Access-class
Decimal - Hex
Root and designated

28. tcp/udp port for DNS
Show frame-relay lmi
53
Pap and chap
No frame-relay inverse-arp

29. What commands create plain-text ospf authentication?
Link establishment - optional authentication - network layer protocol
Nonbroadcast multi-access
Ip ospf authentication - ip ospf authentication-key XXXXX
Global unicast range

30. What does config register 0x2142 do?
192.168.0.0 to 192.168.255.255
Bypass startup config - initial config mode - password recovery
Q933a - cisco and ansi
To provide routing to a destination not specified in the routing table and is outside the local network

31. IPv6 global unicast addresses
Q933a - cisco and ansi
Publicly routable addresses
One to many addresses...always start with ff
Debug ip icmp

32. How long is an IPv4 address?
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
Sh ip ospf interface
Access-class
32 bits

33. Which command turns on IPv6 routing?
Same as ::...same as 0.0.0.0
10.0.0.0 to 10.255.255.255
Per frame sequence counters and key mixing using temporal keys.
Ipv6 unicast-routing

34. Differences between ripv1 and ripv2
Ripv2 is classless - multicasts - allows authentication
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
Network
Point to point

35. What type of frame subinterface do you use for hub and spoke?
Remote router's connection to the frame relay switch isn't working
Examples and documentation
69
Point to point

36. IPv6 FF00::/8
Debug ppp authentication
Multicast range
The mac address is inserted in the table for fa0/1 only - the switch doesn't need to lear this MAC address
10 seconds with every 6th message being a full status message

37. Name 2 reasons a serial connection can be in an up/down status?
100
Split horizon and holddown timers
Encapsulation mismatch and clock rate issues.
32 bits

38. What are the three options for LMI in FR?
Aes-ccmp
Q933a - cisco and ansi
Sh frame-relay map
Disconnect 3

39. What does ripv2 do to prevent routing loops?
Sh flash
Show frame-relay lmi
Split horizon and holddown timers
Highest logical interface IP - then highest configured IP

40. tcp/udp port for SNMP
Operational pvc
By default
Compression - multilink support - authentication
161

41. How often do LMI messages flow?
One
10 seconds with every 6th message being a full status message
It should be default-network
Debug ip icmp

42. tcp/udp port for telnet
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz
In the address table and added to the running config
23
2102

43. IPv6 unique local address
172.16.0.0 to 172.31.255.255
Sh ip route eigrp
Ipv4 address in a mixed environment
Private address. Can be routed locally - but not on Internet

44. IPv6 FE80::/10
Link-local unicast range
Used with 6 to 4
Debug ip icmp
Feature capabilities - hardware platform - run location and compression status

45. IPv6 multicast address
1544 kbps
::1
One to many addresses...always start with ff
10 seconds with every 6th message being a full status message

46. What is wrong with this command 'ip default-route 10.1.1.1'?
Sh ip eigrp neighbors
It should be default-network
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
Sh ip ospf interface

47. What command is used to debug the ping command?
21
Pap and chap
120
Debug ip icmp

48. What are the three types of congestion notification used by frame relay?
53
FECN - BECN - DE
Feature capabilities - hardware platform - run location and compression status
Debug ip icmp

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

50. What command shows the status of PVC - FECN - BECN
Ip addresses are conserved if vlsm is not used for subnetting
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
Rollover