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Instructions:

Answer 50 questions in 15 minutes.
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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 Layer 2 in the OSI Model?
Every 16 ip's
Session
R
Data-Link

2. IEEE Standards: Gibabit Ethernet (Fibre)
/22
256 - the interesting (non-255/0) number. IE: 255.240.0.0 the interesting number is 240
IEEE 802.3z
255.255.255.224

3. Command for a static route with exit interface
Every 8 ip's
Router(config)#ip route {exit-interface}
It adds the cost of each jump - R1 to R2 over a t1 is a cost of 64 - R2 to computer is a cost of 1. Total cost of route is 65
Can be multicast or unicast depending on number of routers - Update packets. Responds with an ACK packet

4. What is the Data-Link PDU called?
R1(config)#router eigrp 7 - R1(config-router)#network 192.168.1.0 0.0.0.3
Physical
Interface changes state (up/down) - A route has entered or exited the unreachable state - a route was installed in the routing table.
Frames

5. RIP Timers: What is an Flush Timer?
R
By default - the flush timer is set for 240 seconds - which is 60 seconds longer than the invalid timer. When the flush timer expires - the route is removed from the routing table.
IEEE 802.3z
1. Discovery packets - LSP built containing the state of each link - Flood LSP to neighbors - Build Link-state database

6. EIGRP: What is the range of Autonomous System numbers?
/9
1-65535
110
Interface changes state (up/down) - A route has entered or exited the unreachable state - a route was installed in the routing table.

7. Switching Methods: What is Fragment-free?
Data-Link
Switch forwards frame after receiving the 1st 64bytes to insure no errors.
Segments
120

8. Name the OSI Layers
(7)Application -(6)Presentation -(5)Session -(4)Transport - (3)Network - (2)Data Link - (1)Physical
DCE
D
IEEE 802.3u

9. How many Collision domains are there on a with 1 hub and 1 bridge 2 computers?
2 - the bridge separates the collision domain
Packets
1. Router receives update from neighbor indicating a route down - Router makes route as down and starts holddown timer - If router gets an update indicating route is back holddown is removed - If an update is received indicating route is down again i
Router(config)# router rip - Router(config-router)# passive-interface fa0/0

10. Rip Timers: How long is the default for Invalid timer.
62 per network
180 seconds
Every 128 ip's
Can be multicast or unicast depending on number of routers - Update packets. Responds with an ACK packet

11. Subnetting: What is a /25 in Decimal
2 - the bridge separates the collision domain
255.255.255.128
110
Application

12. Subnetting: How many hosts per network if the subnet mask is 255.255.255.240
Can be multicast or unicast depending on number of routers - Update packets. Responds with an ACK packet
14 per network
Router(config)#ip route {exit-interface}
1. Discovery packets - LSP built containing the state of each link - Flood LSP to neighbors - Build Link-state database

13. EIGRP: What is the commands to enable EIGRP for autonomous area 7 and to route network 192.168.1.0 /30
It adds the cost of each jump - R1 to R2 over a t1 is a cost of 64 - R2 to computer is a cost of 1. Total cost of route is 65
R1(config)#router eigrp 7 - R1(config-router)#network 192.168.1.0 0.0.0.3
Multicast packet used for discovery of neighbors sent every 5 seconds - on WAN links sent every 60 seconds
Every 4 ip's

14. Rip Timers: How long is the default for Holddown timer.
IEEE 802.3ab
Transport
180
2 - each port is it's own collision domain

15. CABLES: What is the T568B Pinout Standard?
1:O/W - 2:Orange - 3:G/W - 4:Blue - 5:B/W - 6:Green - 7:Brown/W - 8:Brown
R1(config)#router eigrp 7 - R1(config-router)#network 192.168.1.0 0.0.0.3
/22
Every 16 ip's

16. RIP: Commands to enable ripv1 on a router and add a route to 192.168.1.2
R1(config)#router rip - R1(config-router)#version 2
R3(config)#router rip - R3(config-router)#network 192.168.1.2
IEEE 802.3ab
255.255.255.224

17. How do you find the magic number for subnetting?
1. Discovery packets - LSP built containing the state of each link - Flood LSP to neighbors - Build Link-state database
256 - the interesting (non-255/0) number. IE: 255.240.0.0 the interesting number is 240
Use command bandwidth {bandwidth in KPS} or the command ip ospf cost {amount} both in the interface you want to change
R1(config)# router OSPF 1 - R1(config-router)#network 10.1.1.0 0.0.0.15 area 0

18. IEEE Standards: Ethernet
IEEE 802.3
DCE
180
D

19. What gets the clock rate - DCE or DTE?
DCE
Segments
1. NVRAM - 2. Flash (sequential) - 3. TFTP server (network boot) - 4. ROM (partial IOS)
Router(config)#hostname R1 - R1(config)#line VTY 0 4 - R1(config-line)#login local - R1(config-line)#transport input telnet ssh - R1(config-line)#exit - R1(config)#username {user} password {pass} - R1(config)#ip domain-name {domainname} - R1(config)#

20. What is the layer 3 PDU called?
Multicast packet used for discovery of neighbors sent every 5 seconds - on WAN links sent every 60 seconds
1. Router receives update from neighbor indicating a route down - Router makes route as down and starts holddown timer - If router gets an update indicating route is back holddown is removed - If an update is received indicating route is down again i
Bellman-Ford
Packets

21. Subnetting: What is a 255.255.255.240 in prefix notation
/28
Segments
Show ip eigrp topology
Every 32 ip's

22. What is the metric for RIP
R
Segments
DUAL: Difusing Update Algorithm
Hop Count

23. EIGRP: What packet is used to propagate routing information?
100
110
Can be multicast or unicast depending on number of routers - Update packets. Responds with an ACK packet
Every 4 ip's

24. What is Layer 7 in the OSI Model?
2 hosts
1. Router receives update from neighbor indicating a route down - Router makes route as down and starts holddown timer - If router gets an update indicating route is back holddown is removed - If an update is received indicating route is down again i
(7)Application -(6)Presentation -(5)Session -(4)Transport - (3)Network - (2)Data Link - (1)Physical
Application

25. What is the layer 4 PDU called?
Segments
62 per network
Every 16 ip's
Every 32 ip's

26. RIP: What Algorithm is used in RIP>
Interface changes state (up/down) - A route has entered or exited the unreachable state - a route was installed in the routing table.
Transport
Every 32 ip's
Bellman-Ford

27. Subnetting: What is a 255.255.255.0 in prefix notation
Packets
R3(config)#router rip - R3(config-router)#network 192.168.1.2
Frames
/24

28. OSPF: What is the default administrative distance?
110
1. Router receives update from neighbor indicating a route down - Router makes route as down and starts holddown timer - If router gets an update indicating route is back holddown is removed - If an update is received indicating route is down again i
1:G/W - 2:Green - 3:O/W - 4:Blue - 5:B/W - 6:Orange - 7:Brown/W - 8:Brown
Multicast packet used for discovery of neighbors sent every 5 seconds - on WAN links sent every 60 seconds

29. EIGRP: How do you view if there are any successor routes?
Show ip eigrp topology
Every 8 ip's
/9
1. NVRAM - 2. Flash (sequential) - 3. TFTP server (network boot) - 4. ROM (partial IOS)

30. What is Layer 3 in the OSI Model?
1:G/W - 2:Green - 3:O/W - 4:Blue - 5:B/W - 6:Orange - 7:Brown/W - 8:Brown
Every 64 ip's
Add the magic number to the network minus 1
Network

31. Subnetting: where do the networks break with a /29

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32. Switching Methods: What is Store and Forward?
DCE
Switch forwards frame once it completely receives it
Every 64 ip's
Interface changes state (up/down) - A route has entered or exited the unreachable state - a route was installed in the routing table.

33. IEEE Standards: Gibabit Ethernet (Copper)
Query and other router responds with a REPLY packet.
Interface changes state (up/down) - A route has entered or exited the unreachable state - a route was installed in the routing table.
Packets
IEEE 802.3ab

34. Subnetting: How many hosts per network if the subnet mask is 255.255.255.224
Segments
180
30 per network
R1(config)#router rip - R1(config-router)#version 2

35. Symbol for EIGRP on a Show ip route
Data-Link
Every 32 ip's
Use command bandwidth {bandwidth in KPS} or the command ip ospf cost {amount} both in the interface you want to change
D

36. Subnetting: How many hosts per network if the subnet mask is 255.255.255.192
255.255.255.252
D
62 per network
Router(config)#ip route {exit-interface}

37. EIGRP: What is the name of the algorithm used for EIGRP?
Includes sub-net mask in updates making it classless - has authentication - supports variable length subnet mask - uses multicast instead of broadcast - supports manual summarization
DUAL: Difusing Update Algorithm
/24
126 per network

38. OSPF: How does OSPF calulate the cost of each route - to figure out which way to go?
It adds the cost of each jump - R1 to R2 over a t1 is a cost of 64 - R2 to computer is a cost of 1. Total cost of route is 65
1:O/W - 2:Orange - 3:G/W - 4:Blue - 5:B/W - 6:Green - 7:Brown/W - 8:Brown
IEEE 802.3u
IEEE 802.3ab

39. Subnetting: where do the networks break with a /28

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40. What is the metric for EIGRP
D
Bandwidth - Delay - reliability and Load
126 per network
Layer 2

41. Using the magic number how to you figure the broadcast?
Frames
Add the magic number to the network minus 1
Every 16 ip's
30 per network

42. OSPF: Commands to enable OSPF area 0 and advertise network 10.1.1.1 /28
110
255.255.255.128
R1(config)# router OSPF 1 - R1(config-router)#network 10.1.1.0 0.0.0.15 area 0
R1(config)#router eigrp 7 - R1(config-router)#network 192.168.1.0 0.0.0.3

43. Subnetting: where do the networks break with a /30

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44. Rip: Command to prevent rip updates on an interface
Packets
Router(config)# router rip - Router(config-router)# passive-interface fa0/0
Every 128 ip's
255.255.0.0

45. Subnetting: What is a 255.255.252.0 in prefix notation
/9
/22
14 per network
R3(config)#router rip - R3(config-router)#network 192.168.1.2

46. OSPF: What is the process used by OSPF to build a routing table (step by step)
Router(config)# router rip - Router(config-router)# passive-interface fa0/0
Physical
1. Discovery packets - LSP built containing the state of each link - Flood LSP to neighbors - Build Link-state database
Packets

47. Subnetting: How many hosts per network if the subnet mask is 255.255.255.128
R1(config)#int s0/0 - R1(config-inf)clock rate 64000 <-- on the DCE
256 - the interesting (non-255/0) number. IE: 255.240.0.0 the interesting number is 240
D
126 per network

48. Subnetting: What is a /30 in Decimal
IEEE 802.3z
255.255.255.252
Router(config)#hostname R1 - R1(config)#line VTY 0 4 - R1(config-line)#login local - R1(config-line)#transport input telnet ssh - R1(config-line)#exit - R1(config)#username {user} password {pass} - R1(config)#ip domain-name {domainname} - R1(config)#
/22

49. What are the comands to set the clock rate in a serial connection?
1:G/W - 2:Green - 3:O/W - 4:Blue - 5:B/W - 6:Orange - 7:Brown/W - 8:Brown
R1(config)#int s0/0 - R1(config-inf)clock rate 64000 <-- on the DCE
Frames
Data-Link

50. IEEE Standards: Fast Ethernet
Router(config)# router rip - Router(config-router)# passive-interface fa0/0
IEEE 802.3u
Physical
It adds the cost of each jump - R1 to R2 over a t1 is a cost of 64 - R2 to computer is a cost of 1. Total cost of route is 65