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 an Extended ACL work?
By DLCI's
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
DROTHER
Checks the source and destination address then permits or denies specific protocols


2. By default OSPF uses what type of authentication?
Designated Router (DR) and a Back-up designated Router (BDR)
Null
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
120


3. Admin distance of EIGRP?
Inter-VLAN routing
Different Autonomous Systems
224.0.0.5
90


4. Describe a Inbound ACL
Packets are processed before they are routed to an outbound interface.
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.
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
20 seconds: 10 missed BPDU's


5. Describe features of RIPv1
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
Updates all DROTHER Routers when a change occurs
Scalable and fast convergence
120


6. When do you use Access-Class
4
...
The update only includes info about the route change
For line vty 0 4


7. The no auto-summary command does what?
Forces protocols to behave as if they were classless
By DLCI's
Unspecified
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration


8. What is the default Bridge priority?
Convergence
The lower MAC address
...
32768


9. Static VLAN is what?
Port based
Between areas?
Unspecified
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.


10. Can you delete individual entries in a specific ACL?
Only with Cisco IOS software release 12.3 (2) T
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
1
110


11. Routers are used for what?
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
MD5 and you have to enable it if you want to use it.
RIPv2 and EIGRP
To select the best path to the destination


12. Spanning-Tree cost of 100
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
0
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
10Mb/s


13. VTP Client Mode does what?

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14. What is passing VLAN traffic to another called?
Inter-VLAN routing
Every 10 seconds
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Propagation of partial updates that are sent only to those routers that the changes affect.


15. What do area's do?
Reduce the link-state database and routing table
Distance Vector
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


16. What does the back bone router do?
Connects the different areas
Every 10 Seconds
IP
A layer 3 switch or router


17. Break down the word Link-State

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18. How does Link-State work?
Every 30 minutes by default
Every 10 seconds
Each router builds a map of the network and determines the shortest path to every network.
RIPv2 and EIGRP


19. What does this mean? R 192.168.1.0/24 [120/2] via 10.1.1.2
View
Every 10 seconds
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.
Checks the source address and then permits or denies the entire protocol suite


20. What two parameters does EIGRP use to determine the best route?
Advertised Distance & Feasible distance
Unspecified
16
Bandwidth & Delay


21. What does bounded refer to?
Propagation of partial updates that are sent only to those routers that the changes affect.
Checks the source address and then permits or denies the entire protocol suite
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
By DLCI's


22. Wildcard masks filter

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23. For a VLAN to span across multiple switches What is required?
Automatically
A trunk
10Mb/s
To select the best path to the destination


24. Exterior Gateway Protocols are designed for use between
Scalable and fast convergence
Different Autonomous Systems
Telnet connectivity - authentication and extended ACLs
Advance Distance Vector


25. How often does EIGRP send hellow packets?
Individual or group IP's
To reduce OSPF traffic
Every 5 seconds
4 times the hello interval


26. How does EIGRP work with regards to Load Balancing
Supports both unequal metric load balancing and equal metric balancing.
RIPv2 and EIGRP
30-50 seconds
Convergence


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

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28. In regards to ACL's What are the three protocols?
Carry's traffic for multiple VLANS
Every 10 seconds
One ACL per protocol - One ACL per direction - Once ACL per interface
TRUE


29. Routers running distances vector routing protocol send periodic updates even if there are no changes in the network. True or False?
Match on all routers or it will not work
TRUE
The Diffusing Update Algorithm (DUAL)
RIPv2 & EIGRP


30. A router running EIGRP will store what?
Maximizing address efficiency - organization - summarization
224.0.0.5
All backup routes for destinations.
Between areas?


31. What is the spilt horizon rule?
Updates all DROTHER Routers when a change occurs
It is never useful to send information about a route back in the direction from which the original info came.
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Packets are processed before they are routed to an outbound interface.


32. What does DLCI stand for?
Packet Header
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
A combination of Link-state and distance vector
Data Link Connection Identifier


33. What type of algorithm does RIP use?
Inter-VLAN routing
Multiple virtual interfaces that are associated with one physical interface
Distance Vector
Individual or group IP's


34. Purpose of a Routing Protocol?
Automatically
2^n-2
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
Test Firsts/ Routes Second


35. How do you apply the ACL to an interface
Make sure you are in interface mode - then use this command ip access-group 1 out/in
TRUE
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Telnet connectivity - authentication and extended ACLs


36. How often are OSPF hello packets sent out?
Select the routing protocol - then specify the network.
A trunk
One ACL per protocol - One ACL per direction - Once ACL per interface
Every 10 seconds


37. The AS number must what?
Only topology within their respective area.
Ever 2 seconds
Match on all routers or it will not work
To select the best path to the destination


38. Advance Distance Vector or Hybrid uses what?
Not scalable - hard to maintain as the network grows
A combination of Link-state and distance vector
DROTHER
Link-State


39. What is needed to pass traffic from one VLAN to another?
A layer 3 switch or router
Make sure you are in interface mode - then use this command ip access-group 1 out/in
A backbone area...Also known as Area 0
30-50 seconds


40. What is the dead interval
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
A trunk
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Null


41. What Layer does Frame Relay operate at?
Layers 1 & 2
Every 10 seconds
A group of end stations with a common set of requirements - independent of their physical location
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.


42. How does a Standard ACL work?
Different Autonomous Systems
Every 10 Seconds
Bandwidth & Delay
Checks the source address and then permits or denies the entire protocol suite


43. Every ACL will need what?
Ever 2 seconds
110
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
A permit statement


44. Problem with RIP
Individual or group IP's
120
Susceptible to routing loops
32768


45. Explain OSPF

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46. With OSPF - what must be defined?
The Root bridge is the bridge with the lowest bridge ID
RIPv2 and EIGRP
TRUE
A backbone area...Also known as Area 0


47. Describe an Outbound ACL
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.
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


48. Formula for determining Subnets
To reduce OSPF traffic
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
2^n
Advertised Distance & Feasible distance


49. In regards to troubleshooting OSPF what should you check?
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
It is never useful to send information about a route back in the direction from which the original info came.
The lower MAC address


50. How does the SPF determine the shortest path?
2^n
Determines the cost which is the bandwidth
A permit statement
Make sure you are in interface mode - then use this command ip access-group 1 out/in