Test your basic knowledge |

CCNA

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. How does the SPF determine the shortest path?
Bandwidth & Delay
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Determines the cost which is the bandwidth
The Diffusing Update Algorithm (DUAL)

2. How do you apply the ACL to an interface
110
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Data Link Connection Identifier
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication

3. Problem with RIP
A combination of Link-state and distance vector
0
Advertised Distance & Feasible distance
Susceptible to routing loops

4. When placing ACL's in the Network...Do what?

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5. What is one to nearest
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
For line vty 0 4
Advance Distance Vector
Anycast

6. An autonomous system could also be referred to as what?
Unspecified
90
Domain
Make sure you are in interface mode - then use this command ip access-group 1 out/in

7. What is the purpose of LMI
TRUE
It is the signaling standard that maintains connection and statues between the DCE and DTE
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Every 10 seconds

8. What is ::
View
Packet Header
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Unspecified

9. In regards to troubleshooting OSPF what should you check?
TRUE
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
If int status is UP/UP..Check to make sure OSPF is enabled on the interface

10. Spanning-Tree cost of 100
MAC based
Area Border Router
10Mb/s
MD5 and you have to enable it if you want to use it.

11. Nonbackbone - internal routers are aware of what topology
Port based
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Only topology within their respective area.
EIGRP - OSPF - RIP

12. By default OSPF uses what type of authentication?
100Mb/s
Null
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Only with Cisco IOS software release 12.3 (2) T

13. What type of algorithm does RIP use?
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
120
Layers 1 & 2
Distance Vector

14. What is an Autonomous System?
...
A link is an interface on a router
16
Susceptible to routing loops

15. What is the default load balancing for RIP
Distance Vector
4
224.0.0.5
1

16. Problem with static routes
16
224.0.0.10
Not scalable - hard to maintain as the network grows
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers

17. How often are periodic updates sent out via RIP
Advance Distance Vector
Multiple virtual interfaces that are associated with one physical interface
Every 30 Seconds
Susceptible to routing loops

18. What is the dead interval
Anycast
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
224.0.0.10
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.

19. What type of algorithm does EIGRP use?
A backbone area...Also known as Area 0
Advance Distance Vector
It combines the advantages of Link-State and Distance vector routing protocols.
100Mb/s

20. The time delay for a router to match a network change?
Convergence
Distance Vector
A backbone area...Also known as Area 0
Layers 1 & 2

21. Admin distance of a Static Route?
Connects the different areas
For line vty 0 4
Unspecified
1

22. What two classless protocols act classful by default?
Data Link Connection Identifier
Make sure you are in interface mode - then use this command ip access-group 1 out/in
RIPv2 & EIGRP
A combination of Link-state and distance vector

23. What does the back bone router do?
For line vty 0 4
Connects the different areas
A trunk
Telnet connectivity - authentication and extended ACLs

24. Wildcard masks filter

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25. What distant vector protocols exhibit classless behavior?
RIPv2 and EIGRP
Select the routing protocol - then specify the network.
Associating the network address with a local DLCI.
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL

26. Why is EIGRP considered a Hybrid routing protocol?
Bandwidth & Delay
It combines the advantages of Link-State and Distance vector routing protocols.
15.....16 hops and the interface is down
The update only includes info about the route change

27. The AS number must what?
Match on all routers or it will not work
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.

28. The no auto-summary command does what?
Forces protocols to behave as if they were classless
Plaintext and MD5
Advertised Distance & Feasible distance
Each router builds a map of the network and determines the shortest path to every network.

29. Spanning-Tree cost of 19
1Gb/s
100Mb/s
Inter-VLAN routing
1.) Enter the Routing Manually 2.) Use Dymamic Routing

30. What do you need to do if there are discontigous networks with EIGRP?
Advance Distance Vector
Disable auto summarization
R= Rip protocol; You can reach network 192.168.1.0 in two hops. The 120 is the admin distance and the 2 is the metric (hop). and it can be reached via the 10.1.1.2 network.
...

31. VTP Server Mode does what?

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32. In frame relay What is Inverse Arp
Checks the source address and then permits or denies the entire protocol suite
Unspecified
Associating the network address with a local DLCI.
A combination of Link-state and distance vector

33. What algorithm does EIGRP use?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Unicast - Multicast - Anycast
The Diffusing Update Algorithm (DUAL)
Designated Router (DR) and a Back-up designated Router (BDR)

34. How many hops are allowed with RIP?
15.....16 hops and the interface is down
Checks the source address and then permits or denies the entire protocol suite
90
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication

35. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
20 seconds: 10 missed BPDU's
Port based
View
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.

36. What does the DR do?
Updates all DROTHER Routers when a change occurs
Test Firsts/ Routes Second
MAC based
1Gb/s

37. What is passing VLAN traffic to another called?
Bandwidth & Delay
Ever 2 seconds
Inter-VLAN routing
A group of end stations with a common set of requirements - independent of their physical location

38. Describe features of RIPv1
Match on all routers or it will not work
2^n-2
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
20 seconds: 10 missed BPDU's

39. What are subinterfaces?
A layer 3 switch or router
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Multiple virtual interfaces that are associated with one physical interface

40. Dynamic ACL's are dependent on what?
Telnet connectivity - authentication and extended ACLs
Layers 1 & 2
A backbone area...Also known as Area 0
Six equal cost paths

41. Why is it important to have a loopback address when using OSPF?
Advertised Distance & Feasible distance
A link is an interface on a router
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Designated Router (DR) and a Back-up designated Router (BDR)

42. What is needed to pass traffic from one VLAN to another?
Loopback
A layer 3 switch or router
A link is an interface on a router
Automatically

43. Who designed OSPF?
Every 30 minutes by default
IETF
1
Advertised Distance & Feasible distance

44. How often are LMI's sent out?
The Diffusing Update Algorithm (DUAL)
Private: link local
Every 10 Seconds
2^n

45. OSPF routes packets within a single?
Adjacency
Autonomous System
TRUE
Every 30 Seconds

46. What is the default Bridge priority?
Checks the source and destination address then permits or denies specific protocols
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Between areas?
32768

47. What is Frame Relay?
Every 10 seconds
One ACL per protocol - One ACL per direction - Once ACL per interface
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers

48. What is ::1
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Loopback
Automatically
Adjacency

49. VTP Client Mode does what?

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50. How often does a router send link-state advertisements?
Every 30 minutes by default
The update only includes info about the route change
4
2^n