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Test your basic knowledge |
CCNA
Start Test
Study First
Subjects
:
cisco
,
it-skills
,
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. VTP Transparent Mode does what?
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2. How are Frame Relay Circuits identified?
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3. What is ::1
Cisco - ANSI - Q.933A
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Loopback
Carry's traffic for multiple VLANS
4. The no auto-summary command does what?
Forces protocols to behave as if they were classless
Only with Cisco IOS software release 12.3 (2) T
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
0
5. What are non designated routers called?
10Mb/s
DROTHER
Scalable and fast convergence
IP
6. How often are BPDU's sent?
90
Ever 2 seconds
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Connects the different areas
7. Wildcard masks filter
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8. What type of algorithm does RIP use?
Distance Vector
Convergence
Individual or group IP's
Six equal cost paths
9. How does a Standard ACL work?
A permit statement
0
Checks the source address and then permits or denies the entire protocol suite
No
10. Example of a Routing Protocol?
Adjacency
EIGRP - OSPF - RIP
Routes First/ Tests second
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
11. What are the two ways routers can learn about the destination information?
4
1.) Enter the Routing Manually 2.) Use Dymamic Routing
120
Bandwidth & Delay
12. What is the purpose of LMI
Carry's traffic for multiple VLANS
90
It is the signaling standard that maintains connection and statues between the DCE and DTE
Between areas?
13. What is a VLAN
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
120
A group of end stations with a common set of requirements - independent of their physical location
Dijkstra's Algorithm
14. What are subinterfaces?
To reduce OSPF traffic
Multiple virtual interfaces that are associated with one physical interface
Unicast - Multicast - Anycast
Multicast
15. Break down the word Link-State
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16. What does bounded refer to?
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
No
View
Propagation of partial updates that are sent only to those routers that the changes affect.
17. What algorithm does EIGRP use?
The Diffusing Update Algorithm (DUAL)
Reduce the link-state database and routing table
Multicast
A group of end stations with a common set of requirements - independent of their physical location
18. By default OSPF uses what type of authentication?
Packets are processed before they are routed to an outbound interface.
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
The Diffusing Update Algorithm (DUAL)
Null
19. How often are OSPF hello packets sent out?
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Packets are processed before they are routed to an outbound interface.
A combination of Link-state and distance vector
Every 10 seconds
20. What is an ABR
Area Border Router
Susceptible to routing loops
RIPv2 and EIGRP
Make sure you are in interface mode - then use this command ip access-group 1 out/in
21. What distant vector protocols exhibit classless behavior?
Checks the source and destination address then permits or denies specific protocols
For line vty 0 4
RIPv2 and EIGRP
Cisco - ANSI - Q.933A
22. What is the spilt horizon rule?
Advertised Distance & Feasible distance
90
It is never useful to send information about a route back in the direction from which the original info came.
A permit statement
23. Admin distance of a Static Route?
The Diffusing Update Algorithm (DUAL)
1
Layers 1 & 2
The inverse of a subnet mask.
24. Routing protocol is what?
MAC based
Because a loopback interface is always active and cannot be in a down state like a real interface can.
4
A protocol on how to communicate with other routers
25. A router running EIGRP will store what?
EIGRP - OSPF - RIP
All backup routes for destinations.
A layer 3 switch or router
Maximizing address efficiency - organization - summarization
26. OSPF will elect a what?
Private: link local
Advance Distance Vector
Designated Router (DR) and a Back-up designated Router (BDR)
Layers 1 & 2
27. Dynamic VLAN is what?
MAC based
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
Checks the source address and then permits or denies the entire protocol suite
A group of end stations with a common set of requirements - independent of their physical location
28. What is the Wildcard mask
Supports both unequal metric load balancing and equal metric balancing.
Every 5 seconds
The inverse of a subnet mask.
224.0.0.5
29. OSPF routes packets within a single?
110
Autonomous System
Data Link Connection Identifier
Telnet connectivity - authentication and extended ACLs
30. What is one to nearest
Anycast
Unspecified
A trunk
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
31. Spanning-Tree cost of 19
Multicast
100Mb/s
Every 10 seconds
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
32. When do you use Access-Class
The inverse of a subnet mask.
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
For line vty 0 4
33. What do area's do?
Packet Header
Reduce the link-state database and routing table
Different Autonomous Systems
A link is an interface on a router
34. The time delay for a router to match a network change?
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Convergence
...
35. With ACL's where does the router extract information
Updates all DROTHER Routers when a change occurs
A trunk
A protocol on how to communicate with other routers
Packet Header
36. How do you configure a sub interface?
0
Match on all routers or it will not work
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
MD5 and you have to enable it if you want to use it.
37. With OSPF - there must always be a area......
MAC based
4
0
Every 30 Seconds
38. What is the default Bridge priority?
224.0.0.10
32768
Multicast
Associating the network address with a local DLCI.
39. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
90
The lower MAC address
Layers 1 & 2
For line vty 0 4
40. What is the dead interval
120
Layers 1 & 2
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
41. Can you delete individual entries in a specific ACL?
Multicast
Only with Cisco IOS software release 12.3 (2) T
1Gb/s
EIGRP - OSPF - RIP
42. Formula for determining Subnets
2^n
For line vty 0 4
A layer 3 switch or router
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
43. What do you need to do if there are discontigous networks with EIGRP?
Inter-VLAN routing
Disable auto summarization
Layers 1 & 2
Routes First/ Tests second
44. The advantages of VLSM
32768
The Diffusing Update Algorithm (DUAL)
Data Link Connection Identifier
Maximizing address efficiency - organization - summarization
45. Routers are used for what?
Every 10 seconds
To select the best path to the destination
A permit statement
...
46. Advance Distance Vector or Hybrid uses what?
16
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.
A combination of Link-state and distance vector
47. What is the default load balancing for RIP
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
4
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
Every 5 seconds
48. Problem with RIP
Only with Cisco IOS software release 12.3 (2) T
Susceptible to routing loops
32768
Checks the source and destination address then permits or denies specific protocols
49. What type of algorithm does OSPF & IS-IS use?
Each router builds a map of the network and determines the shortest path to every network.
Every 10 Seconds
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Link-State
50. For an adjacency to occur what do the routers have to agree on?
Only topology within their respective area.
...
Test Firsts/ Routes Second
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.