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 is the default load balancing for RIP
4
A link is an interface on a router
20 seconds: 10 missed BPDU's
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers


2. What is the default Bridge priority?
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
100Mb/s
Reduce the link-state database and routing table
32768


3. Spanning-Tree cost of 19
0
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
100Mb/s
2^n


4. What is the default for equal cost paths for load balancing with OSPF?
Aka Subnet mask
Susceptible to routing loops
Checks the source and destination address then permits or denies specific protocols
4


5. How do you configure OSPF
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
By DLCI's
Checks the source address and then permits or denies the entire protocol suite
IP


6. What is the spilt horizon rule?
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.
It is never useful to send information about a route back in the direction from which the original info came.
All backup routes for destinations.
One ACL per protocol - One ACL per direction - Once ACL per interface


7. The advantages of VLSM
Autonomous System
Test Firsts/ Routes Second
Maximizing address efficiency - organization - summarization
0


8. Routing protocol is what?
1Gb/s
Dijkstra's Algorithm
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
A protocol on how to communicate with other routers


9. What does partial refer to?
The update only includes info about the route change
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Different Autonomous Systems
Area Border Router


10. Dynamic VLAN is what?
Telnet connectivity - authentication and extended ACLs
MAC based
4 times the hello interval
90


11. How does Link-State work?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Packet Header
Each router builds a map of the network and determines the shortest path to every network.
Six equal cost paths


12. Can you delete individual entries in a specific ACL?
To reduce OSPF traffic
EIGRP - OSPF - RIP
2^n
Only with Cisco IOS software release 12.3 (2) T


13. Problem with RIP
Susceptible to routing loops
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
2^n-2
If int status is UP/UP..Check to make sure OSPF is enabled on the interface


14. How does the SPF determine the shortest path?
Data Link Connection Identifier
Associating the network address with a local DLCI.
To reduce OSPF traffic
Determines the cost which is the bandwidth


15. How often does EIGRP send hellow packets?
Domain
Every 5 seconds
Unicast - Multicast - Anycast
2^n


16. Classful Protocols summarize
RIPv2 and EIGRP
Automatically
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
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


17. What two classless protocols act classful by default?
It combines the advantages of Link-State and Distance vector routing protocols.
RIPv2 & EIGRP
MAC based
Dijkstra's Algorithm


18. An autonomous system could also be referred to as what?
All backup routes for destinations.
110
Checks the source and destination address then permits or denies specific protocols
Domain


19. Formula for determining Subnets
Area Border Router
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Packets are processed before they are routed to an outbound interface.
2^n


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

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21. When do you use Access-Class
Only topology within their respective area.
For line vty 0 4
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Cisco - ANSI - Q.933A


22. How does EIGRP work with regards to Load Balancing
Each router builds a map of the network and determines the shortest path to every network.
20 seconds: 10 missed BPDU's
Convergence
Supports both unequal metric load balancing and equal metric balancing.


23. What address is FE80:/10
20 seconds: 10 missed BPDU's
110
1Gb/s
Private: link local


24. Can a Router exchange routing information if they are using different Routing Protocols?
Disable auto summarization
Loopback
No
The Diffusing Update Algorithm (DUAL)


25. Max_age time for BPDU's

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26. What is prefix length?
Cisco - ANSI - Q.933A
Aka Subnet mask
A permit statement
Test Firsts/ Routes Second


27. How are Frame Relay Circuits identified?

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28. Nonbackbone - internal routers are aware of what topology
32768
Only topology within their respective area.
1Gb/s
One ACL per protocol - One ACL per direction - Once ACL per interface


29. Why is EIGRP considered a Hybrid routing protocol?
It combines the advantages of Link-State and Distance vector routing protocols.
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address


30. Admin distance of EIGRP?
90
32768
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Every 30 minutes by default


31. How does a Standard ACL work?
90
Layers 1 & 2
TRUE
Checks the source address and then permits or denies the entire protocol suite


32. How does an outbound ACL work?
Routes First/ Tests second
0
Forces protocols to behave as if they were classless
Area Border Router


33. How is an EUI-64 format interface ID created from a 48-Bit MAC address
Automatically
Domain
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
The inverse of a subnet mask.


34. A router running EIGRP will store what?
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
All backup routes for destinations.
Connects the different areas
A backbone area...Also known as Area 0


35. Formula for determining hosts
TRUE
Every 5 seconds
A permit statement
2^n-2


36. Spanning-Tree coast of 4
Not scalable - hard to maintain as the network grows
All backup routes for destinations.
Cisco - ANSI - Q.933A
1Gb/s


37. Normal time for STP convergence
A permit statement
100Mb/s
Between areas?
30-50 seconds


38. What does a trunk do?

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39. How do you apply the ACL to an interface
A group of end stations with a common set of requirements - independent of their physical location
Select the routing protocol - then specify the network.
TRUE
Make sure you are in interface mode - then use this command ip access-group 1 out/in


40. By default OSPF uses what type of authentication?
Select the routing protocol - then specify the network.
Null
The lower MAC address
Anycast


41. In Link state terminology - What is a link?
A link is an interface on a router
IETF
Six equal cost paths
Area Border Router


42. Advance Distance Vector or Hybrid uses what?
Distance Vector
A combination of Link-state and distance vector
1
Designated Router (DR) and a Back-up designated Router (BDR)


43. For a VLAN to span across multiple switches What is required?
Every 10 Seconds
16
A trunk
4


44. Example of a Routed Protocol?
Checks the source and destination address then permits or denies specific protocols
IP
Packet Header
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.


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

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46. What two parameters does EIGRP use to determine the best route?
Advertised Distance & Feasible distance
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.
No
120


47. How often are BPDU's sent?
Ever 2 seconds
Match on all routers or it will not work
MAC based
Every 30 minutes by default


48. What are non designated routers called?
A combination of Link-state and distance vector
DROTHER
Supports both unequal metric load balancing and equal metric balancing.
Match on all routers or it will not work


49. What does bounded refer to?
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
Scalable and fast convergence
120
Propagation of partial updates that are sent only to those routers that the changes affect.


50. The no auto-summary command does what?
RIPv2 and EIGRP
Forces protocols to behave as if they were classless
Propagation of partial updates that are sent only to those routers that the changes affect.
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.