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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. Why is EIGRP considered a Hybrid routing protocol?
Every 30 Seconds
Unspecified
It combines the advantages of Link-State and Distance vector routing protocols.
It is never useful to send information about a route back in the direction from which the original info came.
2. What is ::1
Inter-VLAN routing
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
DROTHER
Loopback
3. What are non designated routers called?
DROTHER
Layers 1 & 2
Aka Subnet mask
Every 30 minutes by default
4. 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.
4 times the hello interval
Every 30 Seconds
Dijkstra's Algorithm
5. How is an EUI-64 format interface ID created from a 48-Bit MAC address
Is a classless link-state protocol - creates a neighbor relationship by exchanging hello packets - propagates LSA's rather than routing table updates.
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
No
6. Example of a Routing Protocol?
4
DROTHER
EIGRP - OSPF - RIP
Telnet connectivity - authentication and extended ACLs
7. How often are OSPF hello packets sent out?
RIPv2 and EIGRP
1.) Enter the Routing Manually 2.) Use Dymamic Routing
Distance Vector
Every 10 seconds
8. How do you apply the ACL to an interface
Each router builds a map of the network and determines the shortest path to every network.
Every 10 seconds
2^n-2
Make sure you are in interface mode - then use this command ip access-group 1 out/in
9. In bridge root selection - if the bridge prioritys are the same - what determines root selection?
Only topology within their respective area.
The lower MAC address
If int status is UP/UP..Check to make sure OSPF is enabled on the interface
Link-State
10. Exterior Gateway Protocols are designed for use between
Different Autonomous Systems
MD5 and you have to enable it if you want to use it.
32768
Make sure you are in interface mode - then use this command ip access-group 1 out/in
11. Describe a Inbound ACL
Maximizing address efficiency - organization - summarization
Packets are processed before they are routed to an outbound interface.
TRUE
Link is the router interface and State is the description of an interface and it's relationship to neighboring routers
12. How do you configure OSPF
Ever 2 seconds
0
Port based
Rouer OSPF 100 - then network xx.xx.xx.xx. area 0
13. What type of algorithm does EIGRP use?
By DLCI's
Every 10 Seconds
DROTHER
Advance Distance Vector
14. What address is FE80:/10
To reduce OSPF traffic
Discovery of Remote Networks - Maintaining Up to date information - Choosing the best path available
RIPv2 & EIGRP
Private: link local
15. OSPF will elect a what?
Designated Router (DR) and a Back-up designated Router (BDR)
Unspecified
Telnet connectivity - authentication and extended ACLs
Match on all routers or it will not work
16. How does Link-State work?
Each router builds a map of the network and determines the shortest path to every network.
A single interface may be assigned multiple IPv6 addresses - and every IPv6 interface contains at least one loopback address.
The Diffusing Update Algorithm (DUAL)
Packet Header
17. Advance Distance Vector or Hybrid uses what?
A combination of Link-state and distance vector
Area Border Router
IP
Supports both unequal metric load balancing and equal metric balancing.
18. What do area's do?
Unspecified
Reduce the link-state database and routing table
1.) Enter the Routing Manually 2.) Use Dymamic Routing
All backup routes for destinations.
19. What is Frame Relay?
Automatically
It is a means for statistically multiplexing many logical data conversations also known as virtual circuits on a single physical transmission link.
A protocol on how to communicate with other routers
Packet Header
20. What is the Shortest Path First algorithm also called?
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21. What is one to many?
EIGRP - OSPF - RIP
Make sure you are in interface mode - then use this command ip access-group 1 out/in
Multicast
It combines the advantages of Link-State and Distance vector routing protocols.
22. What is the spilt horizon rule?
Supports both unequal metric load balancing and equal metric balancing.
A permit statement
Different Autonomous Systems
It is never useful to send information about a route back in the direction from which the original info came.
23. Routing protocol is what?
No
A protocol on how to communicate with other routers
10Mb/s
RIPv2 & EIGRP
24. How does inbound ACL work?
A combination of Link-state and distance vector
Carry's traffic for multiple VLANS
Test Firsts/ Routes Second
Telnet connectivity - authentication and extended ACLs
25. What is OSPF multicast address?
224.0.0.5
Advertised Distance & Feasible distance
The inverse of a subnet mask.
2^n-2
26. VTP Client Mode does what?
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27. In frame relay What is Inverse Arp
Supports both unequal metric load balancing and equal metric balancing.
Unspecified
Associating the network address with a local DLCI.
Anycast
28. What does DLCI stand for?
IETF
Data Link Connection Identifier
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 10 Seconds
29. Normal time for STP convergence
OSPF Neighbor adjacencies - OSPF routing table - and OSPF authentication
1
30-50 seconds
Advance Distance Vector
30. What are the three LMI standards
Susceptible to routing loops
10Mb/s
Cisco - ANSI - Q.933A
1.) Enter the Routing Manually 2.) Use Dymamic Routing
31. In Link state terminology - What is a link?
Packet Header
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
Match on all routers or it will not work
A link is an interface on a router
32. What is one to nearest
Adjacency
10Mb/s
For line vty 0 4
Anycast
33. The AS number must what?
Match on all routers or it will not work
16
A group of end stations with a common set of requirements - independent of their physical location
Every 30 Seconds
34. Dynamic ACL's are dependent on what?
A backbone area...Also known as Area 0
Cannot create - modify or delete VLAN's - sends and forwards advertisements - synchronizes VLAn configurations.
Telnet connectivity - authentication and extended ACLs
Plaintext and MD5
35. Spanning-Tree cost of 19
32768
100Mb/s
Creates - Modifies - and deletes VLAN's - Sends and forwards advertisements - Synchronizes VLAN configuration
Autonomous System
36. What is needed to pass traffic from one VLAN to another?
Reduce the link-state database and routing table
Test Firsts/ Routes Second
A layer 3 switch or router
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.
37. What Layer does Frame Relay operate at?
Layers 1 & 2
Area-ID - hello/dead intervals - authentication - and stub area flag and same IP subnet.
Incoming packets are routed to the outbound interface - and then they are processed through the outbound ACL
By insereting 0xFFFE between the upper three bytes and the lower three bytes of the MAC address
38. Explain how routing loops occur with RIP?
...
A combination of Link-state and distance vector
TRUE
Link-State
39. Max_age time for BPDU's
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40. What does a trunk do?
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41. How often does a router send link-state advertisements?
Every 30 minutes by default
224.0.0.5
Only with Cisco IOS software release 12.3 (2) T
1Gb/s
42. What does EIGRP use to calculate it's metric?
Unicast - Multicast - Anycast
110
Bandwidth & Delay
Associating the network address with a local DLCI.
43. Problem with RIP
Each router builds a map of the network and determines the shortest path to every network.
TRUE
Susceptible to routing loops
1Gb/s
44. What is prefix length?
2^n
Aka Subnet mask
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.
By DLCI's
45. How often does EIGRP send hellow packets?
RIPv2 and EIGRP
The Root bridge is the bridge with the lowest bridge ID
Adjacency
Every 5 seconds
46. Can you delete individual entries in a specific ACL?
Null
Place the extended ACL's as close to the source as possible and the standard ACL's as close to the destination as possible.
All backup routes for destinations.
Only with Cisco IOS software release 12.3 (2) T
47. What three types of IPv6 address types are there?
Unicast - Multicast - Anycast
A trunk
Is the time in seconds that a router waits to hear from a neighbor before declaring the router out of service.
By DLCI's
48. What is the default Bridge priority?
Forces protocols to behave as if they were classless
Routes First/ Tests second
No
32768
49. Static VLAN is what?
Determines the cost which is the bandwidth
The Diffusing Update Algorithm (DUAL)
Port based
Every 30 minutes by default
50. What is a VLAN
1Gb/s
One ACL per protocol - One ACL per direction - Once ACL per interface
Disable auto summarization
A group of end stations with a common set of requirements - independent of their physical location