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. Admin distance of RIPv2
120
Reduce the link-state database and routing table
MAC based
By DLCI's


2. What does partial refer to?
The update only includes info about the route change
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Anycast
To reduce OSPF traffic


3. Normal time for STP convergence
4 times the hello interval
Disable auto summarization
30-50 seconds
Every 30 minutes by default


4. The time delay for a router to match a network change?
Convergence
Adjacency
1.) Enter the Routing Manually 2.) Use Dymamic Routing
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5. What does a trunk do?

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6. What is the purpose of LMI
Automatically
It is the signaling standard that maintains connection and statues between the DCE and DTE
Convergence
Telnet connectivity - authentication and extended ACLs


7. VTP Transparent Mode does what?

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8. Spanning-Tree cost of 100
10Mb/s
...
Because a loopback interface is always active and cannot be in a down state like a real interface can.
A trunk


9. Rip is capable of load balancing over as many as?
Six equal cost paths
Every 10 Seconds
Distance Vector
Loopback


10. What is an Autonomous System?
224.0.0.5
Ever 2 seconds
Unspecified
...


11. Every ACL will need what?
A permit statement
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
By DLCI's
0


12. VTP Client Mode does what?

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13. How often are BPDU's sent?
Each router builds a map of the network and determines the shortest path to every network.
Automatically
Anycast
Ever 2 seconds


14. When do you use Access-Class
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Every 10 Seconds
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
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15. For an adjacency to occur what do the routers have to agree on?
16
Ever 2 seconds
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Packets are processed before they are routed to an outbound interface.


16. With OSPF - there must always be a area......
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
To reduce OSPF traffic
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
0


17. VTP Server Mode does what?

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18. Formula for determining hosts
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
2^n-2
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Aka Subnet mask


19. What are subinterfaces?
RIPv2 & EIGRP
Domain
Multiple virtual interfaces that are associated with one physical interface
4


20. Static VLAN is what?
Port based
Domain
Select the routing protocol - then specify the network.
Inter-VLAN routing


21. Routing protocol is what?
120
A combination of Link-state and distance vector
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
A protocol on how to communicate with other routers


22. Describe an Outbound ACL
Designated Router (DR) and a Back-up designated Router (BDR)
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Area Border Router
Domain


23. Problem with RIP
No
Between areas?
Advance Distance Vector
Susceptible to routing loops


24. Explain how routing loops occur with RIP?
Plaintext and MD5
Area Border Router
Maximizing address efficiency - organization - summarization
...


25. Can you delete individual entries in a specific ACL?
Data Link Connection Identifier
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Only with Cisco IOS software release 12.3 (2) T
A protocol on how to communicate with other routers


26. Advance Distance Vector or Hybrid uses what?
Advance Distance Vector
A combination of Link-state and distance vector
Not scalable - hard to maintain as the network grows
Test Firsts/ Routes Second


27. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
View
10Mb/s
Area Border Router
One ACL per protocol - One ACL per direction - Once ACL per interface


28. Max_age time for BPDU's

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29. Describe a Inbound ACL
30-50 seconds
One ACL per protocol - One ACL per direction - Once ACL per interface
0
Packets are processed before they are routed to an outbound interface.


30. Example of a Routed Protocol?
Designated Router (DR) and a Back-up designated Router (BDR)
IP
EIGRP - OSPF - RIP
Maximizing address efficiency - organization - summarization


31. What does the back bone router do?
Every 30 minutes by default
1
Connects the different areas
Ever 2 seconds


32. An OSPF neighbor relationship can also be called what?
A layer 3 switch or router
Adjacency
RIPv2 & EIGRP
15.....16 hops and the interface is down


33. What Layer does Frame Relay operate at?
15.....16 hops and the interface is down
Layers 1 & 2
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
224.0.0.10


34. Problem with static routes
Each router builds a map of the network and determines the shortest path to every network.
The Diffusing Update Algorithm (DUAL)
Port based
Not scalable - hard to maintain as the network grows


35. How does inbound ACL work?
100Mb/s
A layer 3 switch or router
Disable auto summarization
Test Firsts/ Routes Second


36. What is the spilt horizon rule?
It is never useful to send information about a route back in the direction from which the original info came.
1
Unicast - Multicast - Anycast
Different Autonomous Systems


37. What is the default Bridge priority?
Null
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Aka Subnet mask
32768


38. What is passing VLAN traffic to another called?
Packet Header
224.0.0.10
Inter-VLAN routing
A link is an interface on a router


39. How does Link-State work?
Each router builds a map of the network and determines the shortest path to every network.
Supports both unequal metric load balancing and equal metric balancing.
Advance Distance Vector
0


40. What is ::1
Loopback
A link is an interface on a router
Ever 2 seconds
10Mb/s


41. What is Frame Relay?
Autonomous System
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Anycast
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.


42. How does the SPF determine the shortest path?
110
Determines the cost which is the bandwidth
Scalable and fast convergence
Six equal cost paths


43. Summarization of network information usually occurs where?
A backbone area...Also known as Area 0
Cisco - ANSI - Q.933A
Between areas?
Forces protocols to behave as if they were classless


44. In frame relay What is Inverse Arp
Associating the network address with a local DLCI.
TRUE
2^n-2
100Mb/s


45. Spanning-Tree coast of 4
15.....16 hops and the interface is down
1Gb/s
The update only includes info about the route change
Data Link Connection Identifier


46. Dynamic ACL's are dependent on what?
Not scalable - hard to maintain as the network grows
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Telnet connectivity - authentication and extended ACLs
Link-State


47. Who designed OSPF?
The lower MAC address
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Unspecified
IETF


48. What do you need to do if there are discontigous networks with EIGRP?
Routes First/ Tests second
Multiple virtual interfaces that are associated with one physical interface
Disable auto summarization
All backup routes for destinations.


49. What do area's do?
View
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Reduce the link-state database and routing table
30-50 seconds


50. Classful Protocols summarize
All backup routes for destinations.
The Diffusing Update Algorithm (DUAL)
Automatically
2^n