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 does DLCI stand for?
The Diffusing Update Algorithm (DUAL)
RIPv2 & EIGRP
Data Link Connection Identifier
By DLCI's


2. What is passing VLAN traffic to another called?
Inter-VLAN routing
A trunk
Advance Distance Vector
For line vty 0 4


3. Admin distance of OSPF?
110
The information regarding that link. This can include the router's IP address - the type of network - the cost of the link - and if there are any neighboring routers on that link.
32768
Supports both unequal metric load balancing and equal metric balancing.


4. Dynamic ACL's are dependent on what?
Every 30 Seconds
IP
16
Telnet connectivity - authentication and extended ACLs


5. What is prefix length?
Aka Subnet mask
Distance Vector
Autonomous System
Checks the source and destination address then permits or denies specific protocols


6. In regards to troubleshooting OSPF what should you check?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Test Firsts/ Routes Second
Every 5 seconds
Disable auto summarization


7. What is the dead interval
Multiple virtual interfaces that are associated with one physical interface
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Only with Cisco IOS software release 12.3 (2) T
Unicast - Multicast - Anycast


8. How does a Standard ACL work?
All backup routes for destinations.
Checks the source address and then permits or denies the entire protocol suite
Disable auto summarization
4


9. Admin distance of RIPv2
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
120
Private: link local
4 times the hello interval


10. Nonbackbone - internal routers are aware of what topology
Autonomous System
To reduce OSPF traffic
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Only topology within their respective area.


11. VTP Server Mode does what?

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12. Can a Router exchange routing information if they are using different Routing Protocols?
Forces protocols to behave as if they were classless
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
No
Every 10 seconds


13. Example of a Routed Protocol?
IP
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
10Mb/s
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0


14. What is the Shortest Path First algorithm also called?

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15. What Layer does Frame Relay operate at?
Adjacency
Inter-VLAN routing
10Mb/s
Layers 1 & 2


16. What is an Autonomous System?
Data Link Connection Identifier
...
A protocol on how to communicate with other routers
Checks the source address and then permits or denies the entire protocol suite


17. By default OSPF uses what type of authentication?
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Bandwidth & Delay
Every 5 seconds
Null


18. Spanning-Tree cost of 19
100Mb/s
Forces protocols to behave as if they were classless
Advance Distance Vector
RIPv2 and EIGRP


19. With OSPF - there must always be a area......
DROTHER
0
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Each router builds a map of the network and determines the shortest path to every network.


20. Rip is capable of load balancing over as many as?
Six equal cost paths
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Every 30 minutes by default


21. The time delay for a router to match a network change?
Link-State
It is the signaling standard that maintains connection and statues between the DCE and DTE
...
Convergence


22. Admin distance of a Static Route?
Every 30 minutes by default
1
Autonomous System
A permit statement


23. OSPF routes packets within a single?
4
Determines the cost which is the bandwidth
Autonomous System
15.....16 hops and the interface is down


24. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
Data Link Connection Identifier
The Root bridge is the bridge with the lowest bridge ID
The lower MAC address
IP


25. What two things need to be done to enable dynamic routing?
Connects the different areas
Select the routing protocol - then specify the network.
A protocol on how to communicate with other routers
4


26. What is OSPF multicast address?
4
A link is an interface on a router
224.0.0.5
The Root bridge is the bridge with the lowest bridge ID


27. With OSPF - what must be defined?
0
Aka Subnet mask
Forces protocols to behave as if they were classless
A backbone area...Also known as Area 0


28. In Link state terminology - What is a link?

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29. What address is FE80:/10
Packet Header
Multicast
It combines the advantages of Link-State and Distance vector routing protocols.
Private: link local


30. The advantages of VLSM
It is the signaling standard that maintains connection and statues between the DCE and DTE
Maximizing address efficiency - organization - summarization
Test Firsts/ Routes Second
Each router builds a map of the network and determines the shortest path to every network.


31. What is the default Bridge priority?
100Mb/s
Cisco - ANSI - Q.933A
32768
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL


32. Example of a Routing Protocol?
Make sure trunking is established. Ensure that dot1q encapsulation is set - and then for each subinterface do this encapsulation dot1Q 2 where 2 is the VLAN associated with that interface
EIGRP - OSPF - RIP
32768
TRUE


33. How does Link-State work?
The information regarding that link. This can include the router's IP address - the type of network - the cost of the link - and if there are any neighboring routers on that link.
Distance Vector
Each router builds a map of the network and determines the shortest path to every network.
The inverse of a subnet mask.


34. Spanning-Tree cost of 100
Aka Subnet mask
View
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
10Mb/s


35. Explain OSPF

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36. Formula for determining Subnets
32768
Unicast - Multicast - Anycast
90
2^n


37. Can you delete individual entries in a specific ACL?
Associating the network address with a local DLCI.
Only with Cisco IOS software release 12.3 (2) T
TRUE
No


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

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39. What are non designated routers called?
Reduce the link-state database and routing table
DROTHER
Checks the source address and then permits or denies the entire protocol suite
A combination of Link-state and distance vector


40. What algorithm does EIGRP use?
IP
Private: link local
The Diffusing Update Algorithm (DUAL)
4


41. What are subinterfaces?
Multiple virtual interfaces that are associated with one physical interface
1
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
...


42. How does inbound ACL work?
It combines the advantages of Link-State and Distance vector routing protocols.
Test Firsts/ Routes Second
Only with Cisco IOS software release 12.3 (2) T
10Mb/s


43. How does an Extended ACL work?
Only with Cisco IOS software release 12.3 (2) T
The Root bridge is the bridge with the lowest bridge ID
Every 10 Seconds
Checks the source and destination address then permits or denies specific protocols


44. Why is this done?
To reduce OSPF traffic
View
Disable auto summarization
All backup routes for destinations.


45. How do you configure a sub interface?
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Layers 1 & 2
Make sure trunking is established. Ensure that dot1q encapsulation is set - and then for each subinterface do this encapsulation dot1Q 2 where 2 is the VLAN associated with that interface
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs


46. What is ::1
Multicast
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Loopback
The information regarding that link. This can include the router's IP address - the type of network - the cost of the link - and if there are any neighboring routers on that link.


47. Benefits of OSPF?
Plaintext and MD5
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Scalable and fast convergence
Data Link Connection Identifier


48. Describe a Inbound ACL
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
Aka Subnet mask
Packets are processed before they are routed to an outbound interface.
Make sure you are in interface mode - then use this command ip access-group 1 out/in


49. What does EIGRP use to calculate it's metric?
Bandwidth & Delay
Ever 2 seconds
Multicast
30-50 seconds


50. In regards to ACL's What are the three protocols?
Distance Vector
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Cisco - ANSI - Q.933A
One ACL per protocol - One ACL per direction - Once ACL per interface