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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. What distant vector protocols exhibit classless behavior?
224.0.0.10
100Mb/s
RIPv2 and EIGRP
Connects the different areas
2. How do you configure OSPF
120
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
Multicast
3. Routers are used for what?
Routes First/ Tests second
To select the best path to the destination
Carry's traffic for multiple VLANS
Adjacency
4. Classful Protocols summarize
Automatically
Disable auto summarization
120
The Root bridge is the bridge with the lowest bridge ID
5. How does inbound ACL work?
Every 10 Seconds
Test Firsts/ Routes Second
EIGRP - OSPF - RIP
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
6. Spanning-Tree cost of 19
Every 10 seconds
90
A layer 3 switch or router
100Mb/s
7. What is an Autonomous System?
...
1.) Enter the Routing Manually 2.) Use Dymamic Routing
EIGRP - OSPF - RIP
16
8. Who designed OSPF?
2^n
Select the routing protocol - then specify the network.
A backbone area...Also known as Area 0
IETF
9. What is the maximum number of paths EIGRP can have for the same destination in it's routing table?
Area Border Router
1.) Enter the Routing Manually 2.) Use Dymamic Routing
16
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
10. Advance Distance Vector or Hybrid uses what?
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
A combination of Link-state and distance vector
Layers 1 & 2
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
11. What type of algorithm does RIP use?
Propagation of partial updates that are sent only to those routers that the changes affect.
Every 30 Seconds
Checks the source and destination address then permits or denies specific protocols
Distance Vector
12. What is the default load balancing for RIP
Packets are processed before they are routed to an outbound interface.
Data Link Connection Identifier
The inverse of a subnet mask.
4
13. With ACL's where does the router extract information
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
Packet Header
Creates - Modifies - and deletes local VLAN's only - Forwards advertisements - Does not synchronize VLAN configs
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
14. An autonomous system could also be referred to as what?
Domain
224.0.0.5
Only topology within their respective area.
...
15. How are Frame Relay Circuits identified?
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16. Describe a Inbound ACL
32768
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
Packets are processed before they are routed to an outbound interface.
The inverse of a subnet mask.
17. How long is the dead interval
4 times the hello interval
Updates all DROTHER Routers when a change occurs
For line vty 0 4
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
18. What does a trunk do?
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19. What is ::
Make sure you are in interface mode - then use this command ip access-group 1 out/in
...
Unspecified
A backbone area...Also known as Area 0
20. How does EIGRP work with regards to Load Balancing
A link is an interface on a router
Multicast
Determines the cost which is the bandwidth
Supports both unequal metric load balancing and equal metric balancing.
21. Every ACL will need what?
To reduce OSPF traffic
A permit statement
Every 10 seconds
Adjacency
22. An OSPF neighbor relationship can also be called what?
Test Firsts/ Routes Second
Every 30 minutes by default
Adjacency
TRUE
23. VTP Transparent Mode does what?
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24. What does the DR do?
Unspecified
Select the routing protocol - then specify the network.
A link is an interface on a router
Updates all DROTHER Routers when a change occurs
25. What is a VLAN
A group of end stations with a common set of requirements - independent of their physical location
Disable auto summarization
Determines the cost which is the bandwidth
Every 30 Seconds
26. The AS number must what?
0
Area Border Router
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Match on all routers or it will not work
27. What is one to nearest
Ever 2 seconds
Test Firsts/ Routes Second
Anycast
Every 30 minutes by default
28. What is needed to pass traffic from one VLAN to another?
Checks the source and destination address then permits or denies specific protocols
A layer 3 switch or router
The Root bridge is the bridge with the lowest bridge ID
Link-State
29. How often are LMI's sent out?
The update only includes info about the route change
Every 10 Seconds
Data Link Connection Identifier
...
30. What is the default for equal cost paths for load balancing with OSPF?
TRUE
Propagation of partial updates that are sent only to those routers that the changes affect.
1Gb/s
4
31. What is prefix length?
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
Updates all DROTHER Routers when a change occurs
...
Aka Subnet mask
32. Describe an Outbound ACL
Between areas?
The Diffusing Update Algorithm (DUAL)
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
TRUE
33. How does an Extended ACL work?
16
Telnet connectivity - authentication and extended ACLs
Every 30 minutes by default
Checks the source and destination address then permits or denies specific protocols
34. What two things need to be done to enable dynamic routing?
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
The inverse of a subnet mask.
224.0.0.10
Select the routing protocol - then specify the network.
35. Problem with static routes
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
For line vty 0 4
Not scalable - hard to maintain as the network grows
Routes First/ Tests second
36. By default - EIGRP will perform automatic summarization on classful boundaries. True or False
TRUE
Every 30 minutes by default
Data Link Connection Identifier
The Root bridge is the bridge with the lowest bridge ID
37. How many hops are allowed with RIP?
Not scalable - hard to maintain as the network grows
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
15.....16 hops and the interface is down
View
38. Nonbackbone - internal routers are aware of what topology
Inter-VLAN routing
0
Unicast - Multicast - Anycast
Only topology within their respective area.
39. In frame relay What is Inverse Arp
Associating the network address with a local DLCI.
Routes First/ Tests second
Six equal cost paths
View
40. Spanning-Tree cost of 100
10Mb/s
Make sure you are in interface mode - then use this command ip access-group 1 out/in
30-50 seconds
Ever 2 seconds
41. What two classless protocols act classful by default?
RIPv2 and EIGRP
4
RIPv2 & EIGRP
Between areas?
42. Explain OSPF
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43. How does an outbound ACL work?
All backup routes for destinations.
Unspecified
Routes First/ Tests second
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.
44. 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
Convergence
120
Adjacency
45. What is the Wildcard mask
100Mb/s
The Diffusing Update Algorithm (DUAL)
The inverse of a subnet mask.
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
46. What is an ABR
Area Border Router
1Gb/s
20 seconds: 10 missed BPDU's
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
47. Routing protocol is what?
Packets are processed before they are routed to an outbound interface.
Classful - No VLSM - Broadcast addressing - No route summarization - or Authentication
110
A protocol on how to communicate with other routers
48. Formula for determining hosts
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
It is never useful to send information about a route back in the direction from which the original info came.
2^n-2
Classless - VLSM capable - Subnet mask sent in routing update - Multicast addressing - Supports route summarization - and authentication
49. How does a Standard ACL work?
A protocol on how to communicate with other routers
Scalable and fast convergence
Checks the source address and then permits or denies the entire protocol suite
EIGRP - OSPF - RIP
50. Benefits of OSPF?
Between areas?
Scalable and fast convergence
Multiple virtual interfaces that are associated with one physical interface
Aka Subnet mask