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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. What spread spectrum technology does 802.11b use?
DSSS
172.16.0.0 to 172.31.255.255
128 bits
Sh flash

2. Which command shows if an acl is applied to an interface?
One to many addresses...always start with ff
Sh ip int [interface]
Yes
53

3. What rule does dhcp use when an IP address conflict is detected?
No frame-relay inverse-arp
Sh ip int [interface]
Point to point
The address is removed from the pool until the confilct is resolved.

4. Which command disables frame-relay inverse arp?
Q933a - cisco and ansi
2000::/3
Ripv2 is classless - multicasts - allows authentication
No frame-relay inverse-arp

5. class a private addresses
1 -2 - 5.5 - 11
10.0.0.0 to 10.255.255.255
Show arp
Ignore nvram (password recovery)

6. Which priveleged mode IOS command shows the state of the OSPF DR/BDR election process?
Network
23
Rommon
Sh ip ospf interface

7. What is the frame relay active state?
Local router - frame relay WAN
Compression - multilink support - authentication
Sh frame-relay map
Operational pvc

8. Which command disables frame-relay inverse arp?
Decimal - Hex
Remote router's connection to the frame relay switch isn't working
No frame-relay inverse-arp
32 bits

9. IPv6 2001:0DB8::/32
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 route eigrp
Debug ppp authentication
Examples and documentation

10. IPv6 multicast address
Local router - frame relay WAN
By default
One to many addresses...always start with ff
Sh frame-relay map

11. What encryption does WPA2 use
Decimal - Hex
Aes-ccmp
1544 kbps
Local router - frame relay WAN

12. Static secure mac addresses are stored...
Nonbroadcast multi-access
Sh ip ospf interface
One
In the address table and added to the running config

13. What 3 things are necessary for 2 routers to establish ospf neighborship?
Leased lines
1023
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
1544 kbps

14. IPv6 unicast address
Show frame-relay lmi
Destined for a single interface
Examples and documentation
Encapsulation mismatch and clock rate issues.

15. What type of frame subinterface do you use for hub and spoke?
Sh flash
Sh vtp status
Point to point
Encapsulation mismatch and clock rate issues.

16. What 4 things are necessary for 2 routers to form an eigrp relationship?
One to first of many addresses
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
23
Examples and documentation

17. udp port for DNS
Sh frame-relay map
Rollover
53
Same subnet

18. How does ripv2 respond to topology changes?
Access-class
Sh frame-relay pvc
20
Triggered update - split horizon - route poisoning

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

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20. What are the steps in PPP authentication?
Sh frame-relay traffic
Network
Link establishment - optional authentication - network layer protocol
Compression - multilink support - authentication

21. Which 2 commands show IP address associated with a MAC address
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
Publicly routable addresses
Sh arp and sh int
Same as ::...same as 0.0.0.0

22. Which command shows frame relay status and keep-alive information?
Show frame-relay lmi
Global unicast range
FECN - BECN - DE
Remote router's connection to the frame relay switch isn't working

23. What speeds must be disabled in mixed 802.11b/g WLAN to allow only G clients to connect?
1 - 2 - 5.5 - 11
Compression - multilink support - authentication
2102
Sh frame-relay map

24. Which command shows mac addresses of stations connected to switch ports?
Show frame-relay lmi
Show arp
Ipv6 rip <process-name> enable
Examples and documentation

25. Dynamic secure mac addresses are stored...
Only in the address table
::1
Used with 6 to 4
Per frame sequence counters and key mixing using temporal keys.

26. what 3 things can be deduced from the IOS image file name?
Feature capabilities - hardware platform - run location and compression status
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
53
Examples and documentation

27. IPv6 You can replace ______ contiguous block(s) of zeros with a double colon?
FECN - BECN - DE
10 seconds with every 6th message being a full status message
1544 kbps
One

28. IPv6 2000::/3
Nonbroadcast multi-access
Per frame sequence counters and key mixing using temporal keys.
Yes
Global unicast range

29. Does is-is support VLSM?
Examples and documentation
Link establishment - optional authentication - network layer protocol
100
Yes

30. What commands create plain-text ospf authentication?
Ip ospf authentication - ip ospf authentication-key XXXXX
23
Global unicast range
One to many addresses...always start with ff

31. tcp/udp port for SNMP
161
Sh ip eigrp neighbors
Q933a - cisco and ansi
Ignore nvram (password recovery)

32. What does config register 0x2142 do?
128 bits
Operational pvc
Bypass startup config - initial config mode - password recovery
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

33. What command is used to debug the ping command?
Publicly routable addresses
Remote router's connection to the frame relay switch isn't working
10 seconds with every 6th message being a full status message
Debug ip icmp

34. IPv6 2002::/16
32768
128 bits
Used with 6 to 4
2000::/3

35. Inverse ARP maps a ______ to a ________
10.0.0.0 to 10.255.255.255
DLCI to an IP address
Sh arp and sh int
128 bits

36. IPv4 addresses are represented in _____ while IPv6 addresses are represented in ______.
::1 same as 127.0.0.1
Decimal - Hex
224.0.0.5
Sh ip int [interface]

37. Which two wireless encryption methods are based on RC4?
Point to point
Per frame sequence counters and key mixing using temporal keys.
Aes-ccmp
TKIP and WEP

38. What is the LMI DLCI used in ANSI?
0
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
Encapsulation mismatch and clock rate issues.
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

39. EIGRP summarizes at class boundaries...
Publicly routable addresses
No frame-relay inverse-arp
By default
The pvc is correctly configured - but there is an issue on the remote end of the pvc.

40. What is the command to use an ACL for VTY access
21
Nonbroadcast multi-access
128 bits
Access-class

41. At which layer should you begin troubleshooting QOS issues?
Ripv2 is classless - multicasts - allows authentication
In the address table and added to the running config
Examples and documentation
Network

42. What is the default bridge STP priority?
32768
The pvc is correctly configured - but there is an issue on the remote end of the pvc.
::1
Ipv6 address 2001:0:1:0::2/64 (example)

43. tcp/udp port for POP3
100
Link establishment - optional authentication - network layer protocol
Like private ipv4 address - but can't be routed at all
Sh frame-relay pvc

44. Which 2 port roles forward traffic under 802.1w standard?
Sh arp and sh int
Nonbroadcast multi-access
Encapsulation mismatch and clock rate issues.
Root and designated

45. What can you utilize by using PPP layer 2 encapsulation?
Same subnet
DSSS
Sh frame-relay pvc
Compression - multilink support - authentication

46. IPv6 anycast address
Operational pvc
One to first of many addresses
Link establishment - optional authentication - network layer protocol
DLCI to an IP address

47. What is wrong with this command 'ip default-route 10.1.1.1'?
It should be default-network
The mac address is inserted in the table for fa0/1 only - the switch doesn't need to lear this MAC address
Multicast range
Leased lines

48. What command shows the amount of memory being used and whether there is enough room to load a new image?
32768
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
53
Sh flash

49. IPv6 0:0:0:0:0:0:192.168.100.1
Only in the address table
Ipv4 address in a mixed environment
Point to point
One to first of many addresses

50. What is the advantage of using multipoint interfaces instead of point to point subinterfaces in a frame hub and spoke config?
Ipv6 unicast-routing
1 - 2 - 5.5 - 11
25
Ip addresses are conserved if vlsm is not used for subnetting