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 is an EUI-64 format interface ID created from a 48-Bit MAC address
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
The Root bridge is the bridge with the lowest bridge ID
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
It is the signaling standard that maintains connection and statues between the DCE and DTE


2. Dynamic VLAN is what?
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Autonomous System
MAC based
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.


3. Advance Distance Vector or Hybrid uses what?
The Root bridge is the bridge with the lowest bridge ID
By DLCI's
A combination of Link-state and distance vector
224.0.0.10


4. What are two OSPF authentication methods?
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Susceptible to routing loops
Plaintext and MD5
15.....16 hops and the interface is down


5. What two parameters does EIGRP use to determine the best route?
EIGRP - OSPF - RIP
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Advertised Distance & Feasible distance


6. What algorithm does EIGRP use?
Susceptible to routing loops
Propagation of partial updates that are sent only to those routers that the changes affect.
The Diffusing Update Algorithm (DUAL)
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.


7. For an adjacency to occur what do the routers have to agree on?
IP
Dijkstra's Algorithm
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.


8. Problem with static routes
Only with Cisco IOS software release 12.3 (2) T
0
Not scalable - hard to maintain as the network grows
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.


9. Max_age time for BPDU's

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10. Exterior Gateway Protocols are designed for use between
No
Different Autonomous Systems
224.0.0.10
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available


11. What are subinterfaces?
Only topology within their respective area.
Disable auto summarization
Multiple virtual interfaces that are associated with one physical interface
Test Firsts/ Routes Second


12. Wildcard masks filter

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

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14. How do you configure OSPF
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
For line vty 0 4
A backbone area...Also known as Area 0
To select the best path to the destination


15. OSPF routes packets within a single?
The lower MAC address
Autonomous System
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.


16. The AS number must what?
It is never useful to send information about a route back in the direction from which the original info came.
Match on all routers or it will not work
32768
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication


17. For a VLAN to span across multiple switches What is required?
A backbone area...Also known as Area 0
Distance Vector
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
A trunk


18. What does bounded refer to?
Automatically
EIGRP - OSPF - RIP
Aka Subnet mask
Propagation of partial updates that are sent only to those routers that the changes affect.


19. Rip is capable of load balancing over as many as?
Scalable and fast convergence
Six equal cost paths
...
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.


20. What type of authentication does EIGRP use?
MD5 and you have to enable it if you want to use it.
15.....16 hops and the interface is down
Determines the cost which is the bandwidth
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


21. Explain OSPF

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22. In regards to ACL's What are the three protocols?
Packets are processed before they are routed to an outbound interface.
Multiple virtual interfaces that are associated with one physical interface
One ACL per protocol - One ACL per direction - Once ACL per interface
All backup routes for destinations.


23. In frame relay What is Inverse Arp
IETF
Plaintext and MD5
Data Link Connection Identifier
Associating the network address with a local DLCI.


24. What distant vector protocols exhibit classless behavior?
A combination of Link-state and distance vector
20 seconds: 10 missed BPDU's
RIPv2 and EIGRP
A permit statement


25. Admin distance of OSPF?
1
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
...
110


26. An autonomous system could also be referred to as what?
Domain
Routes First/ Tests second
Checks the source and destination address then permits or denies specific protocols
Updates all DROTHER Routers when a change occurs


27. Can you delete individual entries in a specific ACL?
32768
IP
Carry's traffic for multiple VLANS
Only with Cisco IOS software release 12.3 (2) T


28. How often does a router send link-state advertisements?
Plaintext and MD5
Every 30 minutes by default
10Mb/s
Bandwidth & Delay


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

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30. How often are periodic updates sent out via RIP
Between areas?
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Every 30 Seconds


31. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
The lower MAC address
16
View
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


32. What does EIGRP use to calculate it's metric?
Bandwidth & Delay
Match on all routers or it will not work
Advance Distance Vector
MD5 and you have to enable it if you want to use it.


33. How do you configure a sub interface?
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
1
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


34. How long is the dead interval
Disable auto summarization
The Root bridge is the bridge with the lowest bridge ID
4 times the hello interval
2^n


35. What is the purpose of LMI
It is the signaling standard that maintains connection and statues between the DCE and DTE
Maximizing address efficiency - organization - summarization
Plaintext and MD5
4


36. The time delay for a router to match a network change?
IP
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Convergence
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.


37. With OSPF - there must always be a area......
0
Unspecified
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
4


38. Summarization of network information usually occurs where?
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Between areas?
Every 30 Seconds
Multiple virtual interfaces that are associated with one physical interface


39. What are two statements that are true of IPv6 address representation?
4 times the hello interval
One ACL per protocol - One ACL per direction - Once ACL per interface
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Advance Distance Vector


40. Formula for determining hosts
The Diffusing Update Algorithm (DUAL)
...
2^n-2
MD5 and you have to enable it if you want to use it.


41. OSPF will elect a what?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Port based
Designated Router (DR) and a Back-up designated Router (BDR)
Unspecified


42. What three types of IPv6 address types are there?
15.....16 hops and the interface is down
Unicast - Multicast - Anycast
Advertised Distance & Feasible distance
32768


43. How does inbound ACL work?
A backbone area...Also known as Area 0
Test Firsts/ Routes Second
RIPv2 & EIGRP
Make sure you are in interface mode - then use this command ip access-group 1 out/in


44. Spanning-Tree coast of 4
The Root bridge is the bridge with the lowest bridge ID
1Gb/s
A permit statement
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.


45. How do you apply the ACL to an interface
Carry's traffic for multiple VLANS
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
Make sure you are in interface mode - then use this command ip access-group 1 out/in
100Mb/s


46. What do area's do?
224.0.0.5
RIPv2 & EIGRP
Reduce the link-state database and routing table
Different Autonomous Systems


47. What is an Autonomous System?
...
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
224.0.0.10
Bandwidth & Delay


48. What are non designated routers called?
DROTHER
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
The Root bridge is the bridge with the lowest bridge ID
Because a loopback interface is always active and cannot be in a down state like a real interface can.


49. What is a VLAN
A group of end stations with a common set of requirements - independent of their physical location
Updates all DROTHER Routers when a change occurs
30-50 seconds
90


50. With ACL's where does the router extract information
Six equal cost paths
Packet Header
16
The Diffusing Update Algorithm (DUAL)