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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. class b private addresses
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
172.16.0.0 to 172.31.255.255
Sh flash
FECN - BECN - DE

2. IPv6 2001:0DB8::/32
0
Examples and documentation
20
::1 same as 127.0.0.1

3. udp port for DNS
Show arp
One
TKIP and WEP
53

4. Does is-is support VLSM?
TKIP and WEP
Yes
32768
Device identifier - address list - port identifier - capabilites list - platform

5. What information is supplied by CDP? (5)
69
Triggered update - split horizon - route poisoning
Device identifier - address list - port identifier - capabilites list - platform
Aes-ccmp

6. What sequence of commands creates encrypted eigrp authentication
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
128 bits
Rommon
To configure a route form an ISP router into a corporate network

7. What is the frame relay deleted state?
Per frame sequence counters and key mixing using temporal keys.
No LMI is being received by the switch or there is no service between the CPE and frame switch
172.16.0.0 to 172.31.255.255
Like private ipv4 address - but can't be routed at all

8. What does config register 0x2142 do?
Ip addresses are conserved if vlsm is not used for subnetting
32768
Bypass startup config - initial config mode - password recovery
0

9. IPv4 addresses are represented in _____ while IPv6 addresses are represented in ______.
Access-class
Sh vtp status
Q933a - cisco and ansi
Decimal - Hex

10. The frame relay dlci identifies the logical circuit between the ______ and the ______
Show frame-relay lmi
172.16.0.0 to 172.31.255.255
Ripv2 is classless - multicasts - allows authentication
Local router - frame relay WAN

11. What is the default bandwidth that EIGRP uses when no bandwidth is entered for an interface?
1544 kbps
120
Point to point
Like private ipv4 address - but can't be routed at all

12. Differences between ripv1 and ripv2
Ipv4 address in a mixed environment
1 - 2 - 5.5 - 11
Sh ip int [interface]
Ripv2 is classless - multicasts - allows authentication

13. Which command shows pvc mappings between the router and the frame switch?
Sh frame-relay pvc
The mac address is inserted in the table for fa0/1 only - the switch doesn't need to lear this MAC address
1023
Ip ospf authentication - ip ospf authentication-key XXXXX

14. IPv6 global unicast addresses
1544 kbps
Global unicast range
Ignore nvram (password recovery)
Publicly routable addresses

15. At which layer should you begin troubleshooting QOS issues?
Used with 6 to 4
Ipv6 unicast-routing
Directly connected or connected to multiaccess media - ip addy and snm must be in same network - and hello and dead timers must match
Network

16. What is the order of preference in a routing table?
Rollover
By default
Direct - static - eigrp (inside) - igrp - ospf - rip - external eigrp
1 -2 - 5.5 - 11

17. What commands create plain-text ospf authentication?
53
Ip ospf authentication - ip ospf authentication-key XXXXX
Ipv6 unicast-routing
::1

18. Which 2 port roles forward traffic under 802.1w standard?
Same subnet
Root and designated
Split horizon and holddown timers
Multicast range

19. What can you utilize by using PPP layer 2 encapsulation?
Compression - multilink support - authentication
120
Link establishment - optional authentication - network layer protocol
Pap and chap

20. OSPF hello packets are sent to which address?
1 - 2 - 5.5 - 11
Show frame-relay lmi
224.0.0.5
Same as ::...same as 0.0.0.0

21. How often do LMI messages flow?
Same subnet
32 bits
Sh ip route eigrp
10 seconds with every 6th message being a full status message

22. name a situation where a default route would be appropriate...
DLCI to an IP address
To provide routing to a destination not specified in the routing table and is outside the local network
Ipv6 rip <process-name> enable
Highest logical interface IP - then highest configured IP

23. What does ripv2 do to prevent routing loops?
No frame-relay inverse-arp
Split horizon and holddown timers
Ignore nvram (password recovery)
1 -2 - 5.5 - 11

24. IPv6 0:0:0:0:0:0:0:1
Same subnet
::1 same as 127.0.0.1
224.0.0.5
<ctrl><shift>6 then x

25. What commands create md5 encrypted ospf authentication?
Ip ospf authentication message-digest - ip ospf message-digest-key xkey numberx md5 zmessage keyz
Show frame-relay lmi
120
Per frame sequence counters and key mixing using temporal keys.

26. By default - FR is classified as what type of physical network?
Point to point
Nonbroadcast multi-access
Multicast range
Network

27. IPv6 FC00::/7
Like private ipv4 address - but can't be routed at all
Unique local unicast range
Split horizon and holddown timers
Pap and chap

28. Which command suspends a telnet session?
Same subnet
161
Sh frame-relay pvc
<ctrl><shift>6 then x

29. IPv6 0:0:0:0:0:0:0:0
Like private ipv4 address - but can't be routed at all
Same as ::...same as 0.0.0.0
Encapsulation mismatch and clock rate issues.
Ip addresses are conserved if vlsm is not used for subnetting

30. IPv6 2000::/3
Global unicast range
2102
Only in the address table
1023

31. Which command turns on IPv6 routing?
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)
Show frame-relay lmi
Ipv6 unicast-routing

32. Which command assigns an IPv6 address to an interface?
Ip ospf authentication - ip ospf authentication-key XXXXX
Debug ppp authentication
Ipv6 address 2001:0:1:0::2/64 (example)
DSSS

33. Which command shows global frame relay stats since the last router reload?
21
Root and designated
Sh frame-relay traffic
1544 kbps

34. what 3 things can be deduced from the IOS image file name?
One to first of many addresses
Feature capabilities - hardware platform - run location and compression status
By default
Publicly routable addresses

35. IPv6 unicast address
One to many addresses...always start with ff
Destined for a single interface
The pvc is correctly configured - but there is an issue on the remote end of the pvc.
Sh frame-relay traffic

36. What encryption does WPA2 use
The address is removed from the pool until the confilct is resolved.
Aes-ccmp
Operational pvc
23

37. 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 ip int [interface]
Ripv2 is classless - multicasts - allows authentication
Device identifier - address list - port identifier - capabilites list - platform
Sh frame-relay map

38. tcp/udp port for SMTP
23
Nonbroadcast multi-access
Link-local unicast range
25

39. tcp/udp port for DNS
Split horizon and holddown timers
53
224.0.0.5
One

40. tcp/udp port for FTP control
The pvc is correctly configured - but there is an issue on the remote end of the pvc.
21
Ipv6 address 2001:0:1:0::2/64 (example)
Sh arp and sh int

41. IPv6 0:0:0:0:0:0:192.168.100.1
2102
Compression - multilink support - authentication
Sh frame-relay map
Ipv4 address in a mixed environment

42. How long is an IPv4 address?
32 bits
Bypass startup config - initial config mode - password recovery
21
FECN - BECN - DE

43. name a situation where a static route would be appropriate...
Per frame sequence counters and key mixing using temporal keys.
Show arp
Sh flash
To configure a route form an ISP router into a corporate network

44. Which speeds must be disabled in a mixed 801.11b/g WLAN to all only 802.11g clients to connect?
69
Ip ospf authentication - ip ospf authentication-key XXXXX
1 -2 - 5.5 - 11
25

45. ipv6 global addresses start with ...
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 int [interface]
2000::/3
Arp for the host

46. What speeds must be disabled in mixed 802.11b/g WLAN to allow only G clients to connect?
The address is removed from the pool until the confilct is resolved.
Ip addresses are conserved if vlsm is not used for subnetting
1 - 2 - 5.5 - 11
Debug ppp authentication

47. What is the default bridge STP priority?
100
Publicly routable addresses
Aes-ccmp
32768

48. IPv6 multicast address
Rollover
One to many addresses...always start with ff
0
Rommon

49. IPv6 3FFF:FFFF::/32
Examples and documentation
Highest logical interface IP - then highest configured IP
1 -2 - 5.5 - 11
Link establishment - optional authentication - network layer protocol

50. class c private addresses
Unique local unicast range
192.168.0.0 to 192.168.255.255
Sh frame-relay pvc
Aes-ccmp

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