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. What is needed to pass traffic from one VLAN to another?
A layer 3 switch or router
A combination of Link-state and distance vector
Scalable and fast convergence
Match on all routers or it will not work


2. Admin distance of a connected Network?
Aka Subnet mask
Automatically
Checks the source and destination address then permits or denies specific protocols
0


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

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4. What type of algorithm does OSPF & IS-IS use?
Link-State
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.
Every 30 Seconds
100Mb/s


5. What is the default for equal cost paths for load balancing with OSPF?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
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.
4
1Gb/s


6. How is an EUI-64 format interface ID created from a 48-Bit MAC address
Advance Distance Vector
Connects the different areas
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Between areas?


7. Spanning-Tree coast of 4
0
Multicast
1Gb/s
A backbone area...Also known as Area 0


8. By default OSPF uses what type of authentication?
The inverse of a subnet mask.
Null
The Diffusing Update Algorithm (DUAL)
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration


9. OSPF will elect a what?
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
It is never useful to send information about a route back in the direction from which the original info came.
Not scalable - hard to maintain as the network grows
Designated Router (DR) and a Back-up designated Router (BDR)


10. For a VLAN to span across multiple switches What is required?
MD5 and you have to enable it if you want to use it.
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
A trunk
It is never useful to send information about a route back in the direction from which the original info came.


11. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
TRUE


12. Dynamic ACL's are dependent on what?
Telnet connectivity - authentication and extended ACLs
All backup routes for destinations.
Link-State
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.


13. What is the default load balancing for RIP
4
The Diffusing Update Algorithm (DUAL)
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
32768


14. What are two statements that are true of IPv6 address representation?
Bandwidth & Delay
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Convergence
Routes First/ Tests second


15. What algorithm does EIGRP use?
Every 10 seconds
The Diffusing Update Algorithm (DUAL)
Checks the source address and then permits or denies the entire protocol suite
All backup routes for destinations.


16. Describe an Outbound ACL
TRUE
No
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
Only topology within their respective area.


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

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18. What is one to nearest
Only topology within their respective area.
Anycast
Data Link Connection Identifier
Adjacency


19. How do you configure OSPF
Select the routing protocol - then specify the network.
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
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0


20. Nonbackbone - internal routers are aware of what topology
Only topology within their respective area.
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
All backup routes for destinations.
32768


21. What address is FE80:/10
Checks the source address and then permits or denies the entire protocol suite
The Diffusing Update Algorithm (DUAL)
Every 10 seconds
Private: link local


22. What is Frame Relay?
16
Ever 2 seconds
1.) Enter the Routing Manually 2.) Use Dymamic Routing
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.


23. Summarization of network information usually occurs where?
Adjacency
Connects the different areas
Between areas?
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available


24. How does EIGRP work with regards to Load Balancing
TRUE
The lower MAC address
A combination of Link-state and distance vector
Supports both unequal metric load balancing and equal metric balancing.


25. What are two OSPF authentication methods?
Plaintext and MD5
4 times the hello interval
Advertised Distance & Feasible distance
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication


26. When do you use Access-Class
For line vty 0 4
Match on all routers or it will not work
Determines the cost which is the bandwidth
Checks the source address and then permits or denies the entire protocol suite


27. With OSPF - there must always be a area......
0
32768
Multiple virtual interfaces that are associated with one physical interface
Reduce the link-state database and routing table


28. Routers are used for what?
To select the best path to the destination
90
EIGRP - OSPF - RIP
Disable auto summarization


29. Purpose of a Routing Protocol?
One ACL per protocol - One ACL per direction - Once ACL per interface
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
15.....16 hops and the interface is down
If int status is UP/UP..Check to make sure OSPF is enabled on the interface


30. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
Anycast
Determines the cost which is the bandwidth
Autonomous System
16


31. Admin distance of a Static Route?
It is the signaling standard that maintains connection and statues between the DCE and DTE
1
Inter-VLAN routing
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration


32. VTP Client Mode does what?

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33. What does bounded refer to?
A permit statement
Propagation of partial updates that are sent only to those routers that the changes affect.
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Plaintext and MD5


34. The no auto-summary command does what?
30-50 seconds
Inter-VLAN routing
Select the routing protocol - then specify the network.
Forces protocols to behave as if they were classless


35. Classful Protocols summarize
No
Automatically
EIGRP - OSPF - RIP
Every 10 Seconds


36. What three types of IPv6 address types are there?
Adjacency
One ACL per protocol - One ACL per direction - Once ACL per interface
Area Border Router
Unicast - Multicast - Anycast


37. Describe features of RIPv2
Forces protocols to behave as if they were classless
Bandwidth & Delay
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
A combination of Link-state and distance vector


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

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39. In regards to ACL's What are the three protocols?
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
One ACL per protocol - One ACL per direction - Once ACL per interface
Only topology within their respective area.
Port based


40. Wildcard masks filter

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41. With OSPF - each router builds its SPF tree using the same link-state information - but each will have a separate ________ of the topology
Because a loopback interface is always active and cannot be in a down state like a real interface can.
Advertised Distance & Feasible distance
Port based
View


42. Formula for determining hosts
The Root bridge is the bridge with the lowest bridge ID
2^n-2
It combines the advantages of Link-State and Distance vector routing protocols.
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers


43. Static VLAN is what?
IP
Port based
Bandwidth & Delay
110


44. How often are BPDU's sent?
Ever 2 seconds
Loopback
No
Distance Vector


45. What Layer does Frame Relay operate at?
Private: link local
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Layers 1 & 2
Adjacency


46. How does the SPF determine the shortest path?
Determines the cost which is the bandwidth
For line vty 0 4
Every 10 Seconds
It combines the advantages of Link-State and Distance vector routing protocols.


47. 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.
EIGRP - OSPF - RIP
Multiple virtual interfaces that are associated with one physical interface
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication


48. What distant vector protocols exhibit classless behavior?
Maximizing address efficiency - organization - summarization
A protocol on how to communicate with other routers
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
RIPv2 and EIGRP


49. What type of algorithm does RIP use?
Distance Vector
Loopback
0
Advance Distance Vector


50. The time delay for a router to match a network change?
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Convergence
Updates all DROTHER Routers when a change occurs
It is the signaling standard that maintains connection and statues between the DCE and DTE