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1. HDLC is a synchronous serial link protocol

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Questions on ICND2 BUT ONLY VERY FEW QUESTIONS SO FAR. . . WORK IN PROGRESS.

2.

What first name or nickname would you like us to use?

You may optionally provide this to label your report, leaderboard, or certificate.

2. What type of VPN allows a home user to connect to his office from his laptop or home PC?

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3. Which of the following would typically be installed on a home user's laptop so that a remote access VPN connection can be initiated to the company Network access server? CHOOSE ONE

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4. The Diffie-Hellman algorithm is used for key exchange?

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5. PPP is supports both synchronous and asynchronous links

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6. Data can only be sent over a Frame relay network when Virtual circuits are in a particular state. Choose two

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7. A path that is not a successor but meets the feasible condition is what?

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8. LEASED LINES ARE CHEAPER THAN VPNS? TRUE OR FALSE

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9. "A route cannot be advertised out the same interface upon which the advertisement for the same network was received" What does this refer to?

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10. In an STP enabled network, Switches A, B, C and D are connected up to each other. When they each send their initial BPDUs what will they be stating until told otherwise?

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11. In order to ensure VPN connections are encrypted securely, ESP must be used when running IPSEC?

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12. On an switched ethernet segment between two switches, you need to work out which of the two Switches is going to be the designated one . SWITCH-1  - PRIORITY:MAC = 32768:000A:1590:2000 SWITCH-2 - PRIORITY:MAC = 32768:0009:1544:2054 Both Switches have a cost of 19 to get to the root bridge. On the segment between Switch-1 and Switch-2 which of them is going to be designated?

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13. You have configured 8 trunk links between Switch's A and B and have setup etherchannel. Each trunk link is running at 1Gb. What will happen if 7 out of 8 links suddenly fail due to interface malfunction?

Explanation

convergence will only start if all 8 links were to fail. Etherchanne; requires between 2 and 8 parallel links of equal speed between switches. At least one of the links must be up in order to avoid STP convergence

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14. IPSEC is made up of three protocols called AH,ESP and IKE. True or false?

Explanation

AH-AUTHENTICATION HEADER, ESP, ENCAPSULATING SECURITY PAYLOAD AND IKE (INTERNET KEY EXCHANGE)

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15. Using the Passive interface {inteface#} command within EIGRP router config mode will prevent that interface participating in EIGRP

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16. The switch which is forwarding the lowest cost BPDU onto a segment running 802.1D is called what?

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17. A switch's MAC table shows that it has source MAC address 0200.1234.A000 associated with port fa0/5. A short time later the MAC address changes and it continues to change. No cables have been unplugged and the toplogy has not been altered. What is this also known as? select one

Explanation

MAC address table instability=the continual updating of the switch's MAC table with incorrect entries as a result of looping frames.

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18. What terms describe what the Successor is when EIGRP is enabled? choose one

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19. Select one from the following list which IPv6 does not support?

Explanation

Ipv6 supports Multicasts,unicasts and anycasts but does not need broadcasts

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20. Two routers (A and B) are connected up via a serial link and their encapsulation protocols are set to use PPP and OSPF is running to advertise any other connected routes. Router A can ping Router B and vice versa. But when Router A attempts to ping Router B's LAN interfaces, no reply is received. What is the problem?

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21. Which option describes the following "router sends packets and calculates a percentage sent against how much was lost and then displays the lost percentage?"

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22. What is the field TTL in an IPv4 header equivalent to in an IPv6 header?

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23. When typing "Show interface s0/1/0" you see the message "LCP closed" in the output. What does this mean? choose one please

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24. Which one of the following packet types advertises routes, sent when there is a change and multicast to 224.0.0.10

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25. A VC status of deleted is most likely the result of what? choose one

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26. In EIGRP, K1= and K3= choose two

Explanation

K1=bandwidth in Kbps and K3=delay in 10s of seconds

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27. A router advertises a route with a metric of 16. What is this referred to?

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28. The distance to a destination advertised by a neighbor plus the cost to get to that neighbor is defined by which special and verbose term? choose one

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29. IEE802.1D  is disabled on a topology consisting of four switches. What will this possibly result in? SELECT ONE

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30. Which of the following NAT types will typically use access-lists? choose 2

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31. What advantages does IPv6 have over IPv4? choose one

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32. Which protocols does EIGRP support? choose 4

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33. Which of the following are 168Bits in size?

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34. An  UP/Down status on a router could indicate what? choose 5

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35. How many fields are there in an IPv6 header?

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36. A metric of a given route as indicated by a neighbor router is called what ? select one

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37. The AREA Authentication command is issued for OSPF Process 65535. Which command can be typed to see whether area authentication was enabled or not ?

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38. What is the default STP cost for an interface with bandwidth 1Gb

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39. Spanning-tree portfast disable is typed on the switch. What mode was this command typed in, in order for it to work?

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40. Which of the following IPv6 address types is equivalent to an APIPA address?

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41. In a new installation of Cisco routers and the creation of a VPN, a concentrator or PIX firewall would be preferred over ASA?

Explanation

ASA(Adaptive security Appliance) has VPN functions built in and in today's market is mainly used for VPN as well as other security aspects. Concentrators and PIX are old school VPN

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42. PPP has been configured on two routers and IP addresses correctly setup. Yet despite doing a no shutdown, the serial interfaces are in an UP/DOWN status. What could cause this? name TWO

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43. The command "SPANNING-tree PORTfast" can only be issued in which mode?

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44. If keepalives are not received by a neighbouring router, what will happen?

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45. SIA occurs after what period of time?

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46. In OSPF which of the following much match between neighbors in order to form adjaceny?

Explanation

Not only must the neighbor be on the same network but the subnet mask must be the same in order to form an adjaceny between them

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47. Which of the following encryption types are 56bit in size?

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48. WHich of the following OSPF network types will elect DRs and BDRs?

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49. A router is connected to another router using a Back to Back DTE/DCE cable. A down/down status on a router can indicate what? Choose three

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50. Host A received 5 copies of the same frame within the space of a few seconds. What is this also called ? Select one

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51. Which of the following fields exist in IPv4 but Not in IPv6?

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52. Select two differences between RIPV1 AND RIPV2 ?

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53. During a root switch election, what will each switch's cost to reach root be when they advertise their initial BPDUs? select one

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54. The type of VPN that allows offices in the same organisation to connect together is called a...... choose two please

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55. Which two commands when typed will display the PVC status codes?

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56. When running RSTP between switches, what is the physical medium known as? choose two

Explanation

Link type shared is used between hubs and switches and will run in half duplex
edge type is used between hosts and switch

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57. Administrator Tedicus, issues the "Spanning-tree vlan 1 root primary" command. Before he issued this command the Switch's priority was 24,577. What will it be now? choose one

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58. ACCESS-ROUTER is connected to OFFICE-R1 using a serial link and a leased line. Both routers are setup for authentication using the  "PPP Authentication PAP CHAP" command. A subsequent PPP negotiation Debug yields the following information Serial0/3/0 PAP: I AUTH-REQ id 17 len 15 Serial0/3/0 PAP: Authenticating peer Serial0/3/0 PAP: Phase is FORWARDING, Attempting Forward Serial0/3/0 PPP: Phase is FORWARDING, Attempting Forward Serial0/3/0 Phase is ESTABLISHING, Finish LCP Serial0/3/0 Phase is UP What status will the Link Control Protocol be in now on both these router's serial interfaces?

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59. Engineer Ted has been asked to create a VPN connection between his company's office and a partner company. What type of VPN is this commonly referred to? Choose one

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60. In the IPv6 header, the field traffic class is tantamount to which field in the IPv4 header?

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61. Link local addresses are used to forward data

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62. Looping frames can lead to? name two

Explanation

Broadcast storms =looping frames
Broadcaststorms/looping frames can cause mac table instability and multiple frame transmission

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63. Name three things that BPDU guard can help protect against?

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64. What is the default STP cost of an ethernet interface? choose one

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65. BPDU guard can be used to protect against what?

Explanation

BPDU guard will prevent BPDUs from being received on a BPDU enabled port. This means if a switch sends a BPDU to this port it will go into a error-disabled state
BPDU guard is typically used on portfast enabled ports.

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66. The following message appears on a switch %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/1 (16), with NOTTS-SW1 FastEthernet0/2 (1). Which TWO commands can be issued on the local switch to asertain what is causing the problem ?

Explanation

The initial step is to find out what the native vlan is and this can be done by running these two commands. Both will display whether the interface is trunking and also what the native vlan is on that port.

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67. The command "SPANNING-tree PORTfast DEfault" can only be issued in which mode?

Explanation

"SPANNING-tree PORTfast DEfault" will activate portfast on ALL non trunking ports, can only be typed in global config mode

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68. What is the default value for the Hold down timer in RIPv2?

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69. EIGRP SUMMARY ROUTES HAVE AD OF?

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70. In a network, NOTTS-SW1 (SWITCH) is connected to R1 (ROUTER). DHCP services have been setup on this router and a pool of addresses correctly configured. The trunk port between the router and the switch have also been correctly configured and the the encapsulation type set to 802.1q. Despite this, the computers in vlan 16 are unable to aquire an IP address from the DHCP enabled router. The following command is run on the switch OTTS-SW1#SHOW INT FA0/4 SW NOTTS-SW1#SHOW INT FA0/4 SWitchport Name: Fa0/4 Switchport: Enabled Administrative Mode: static access Operational Mode: down Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: Off Access Mode VLAN: 999 (shutdown) Trunking Native Mode VLAN: 1 (default) Voice VLAN: none Administrative private-vlan host-association: none Administrative private-vlan mapping: none Administrative private-vlan trunk native VLAN: none Administrative private-vlan trunk encapsulation: dot1q Administrative private-vlan trunk normal VLANs: none Administrative private-vlan trunk private VLANs: none Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL Not sure what else to do, the network admin runs the "show running-config" command on the router and it displays interface FastEthernet0/0.16  encapsulation dot1Q 16 native  ip address 10.0.0.17 255.255.255.240 WHAT CAN BE DONE TO RESOLVE THIS PROBLEM SO THAT VLANS ARE NOT EFFECTED OR DELETED?

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71. Errors are occuring on a link and now the router's interface has been disabled as a result. What function looks at errors and then disables an interface if a certain threshold is reached?

Explanation

Link Quality Monitoring is a function of LCP and it checks for errors as well as looks to disable an interface should these errors become too frequent.

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72. Which of the following need to match in order for neighbor relationships to form in EIGRP? choose 3

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73. An Ipv6 host sends out a neighbor solicitation message. What type of packet is this and to what address is it send? CHOOSE TWO

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74. The AH sub protocol in IPSec supports which of the following ? choose two

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75. ACCESS-ROUTER is connected to OFFICE-R1 using a serial link and a leased line. Both routers are setup for authentication using the  "PPP Authentication PAP CHAP" command. The following commands are issued on each router: ACCESS-ROUTER username OFFICE-R1 password 0 hello interface Serial0/3/0  ip address 192.168.0.1 255.255.255.252  encapsulation ppp  ppp authentication pap chap  ppp pap sent-username ACCESS-ROUTER password 0 hello OFFICE-R1: username ACCESS-ROUTER password 0 hello  ip address 192.168.0.2 255.255.255.252  encapsulation ppp  ppp authentication pap chap  ppp pap sent-username OFFICE-R1 password 0 HELLO What will happen as a result of these configs? CHOOSE FOUR

Explanation

PAP AND CHAP IS CASE SENSITIVE SO BE SURE THAT USERNAMES AND PW'S MATCH UP.
IN THIS EXAMPLE PAP WILL BE LOOKED AT FIRST AS A METHOD OF AUTHENTICATION BUT AS IT FAILED (DUE TO INCORRECT PW), CHAP IS NOT EVEN CONSIDERED. IF THE PPP PAP SENT-USERNAME {NAME HERE} PASSWORD {PASSWORD HERE} CMD WAS NOT APPLIED THEN IT WOULD HAVE SKIPPED PAP AND TRIED CHAP

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76. Name 3 features of Eigrp?

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77. A router is running EIGRP and when the topology table is viewed, a particular route is now showing as being in ACTIVE state. What two things does this indicate?

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78. The network admin wants to setup a switched toplogy consisting of three switches (Alpha, Beta and Delta) which are running trunk links to one another but he also wants to ensure that PCs aquire their IP addresses immediately on boot ip and that other switches can be plugged into the network as the network grows. However, he wants to ensure that Switch called Delta continues to stay as the root. What two things he use to ensure he meets these requirements?

Explanation

ROOTGUARD enabled ports mean that the switch will put that port into disabled state if it receives a superior BPDU from another switch with a lower priority or MAC address. The rootguard enabled port will remain in disabled state and will not send or receive frames. It will remain in this state until the switch that sent the superior BPDU is either removed from the network or he realises he isn't superior and is just a lackey

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79. Select two routing loop prevention mechanisms and one routing protocol that uses these?

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80. Select two encryption types which are symmetrical?

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81. Which of the following OSPF networks elect DRs and BDRs?

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82. The default hello interval for LAN connections in EIGRP is what?

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83. What type of mapping has been used for 200.0.0.6 ? CHOOSE ONE ANSWER ACCESS-ROUTER#show ip nat translation Pro  Inside global     Inside local       Outside local      Outside global icmp 200.0.0.6:17      10.0.0.142:17      200.0.0.2:17       200.0.0.2:17 icmp 200.0.0.6:18      10.0.0.142:18      200.0.0.2:18       200.0.0.2:18 icmp 200.0.0.6:19      10.0.0.142:19      200.0.0.2:19       200.0.0.2:19 icmp 200.0.0.6:20      10.0.0.142:20      200.0.0.2:20       200.0.0.2:20 icmp 200.0.0.3:25      10.0.0.50:25       200.0.0.2:25       200.0.0.2:25 icmp 200.0.0.3:26      10.0.0.50:26       200.0.0.2:26       200.0.0.2:26 icmp 200.0.0.3:27      10.0.0.50:27       200.0.0.2:27       200.0.0.2:27 icmp 200.0.0.3:28      10.0.0.50:28       200.0.0.2:28       200.0.0.2:28 ---  200.0.0.6         10.0.0.142         ---                ---

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84. PPP Supports which of the following features? choose 4

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85. Broadcast storms can lead to..... select two

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86. Which of the following OSPF networks have default values of 10seconds and 40 seconds for its hello and dead timer intervals?

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87. Which of the following detects if a link is looped and then disables the interface, allowing re-routing to an alternative path?

Explanation

Magic number is a feature of PPP LCP (Link control Protocol) and it uses a unique magic number which is sent out by the router. This router should not receive back the same number. If it does then it means there's a loop.

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88. Select three features which IPv6 support which IPv4 did not ?

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89. LCP supports which of the following features? choose 4

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90. EIGRP packets that do not require acknowledgments are: ? choose two

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91. Which of the following header fields exist in IPv4 but not in IPv6 ? select two

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92. The sub protocol ESP supports which of the following ? Choose two MAIN options

Explanation

ESP also supports authentication but it is a very weak one. AH is typically used for Authentication and integrity

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93. You are trying to configure LT2P but cannot find the port number and encryption type that must be used with it, in order for it work properly. Which of the following must be used in order for it to work?

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94. You run the following interface level command on your router and receive the following output   Process ID 1, Router ID 2.2.2.2, Network Type POINT-TO-POINT, Cost: 64   Transmit Delay is 1 sec, State POINT-TO-POINT, Priority 0   No designated router on this network   No backup designated router on this network What command was issued to view this and which statements are true? choose three

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95. Which of the following EIGRP  packets use RTP? choose three

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96. Which of the folloing are 128BIT in size? CHOOSE THREE

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97. Which of the following can be sent as Unicast in EIGRP? choose 3

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98. You use a packet capturing tool to record what is stored in the Hello BPDU's sent by switches, which take part in STA. What fields are you likely to see in this Hello frame? choose four

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99. When a Hello message is sent to a neighboring router every 5 or 60 seconds by default, what does this message contain? CHOOSE 4

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HDLC is a synchronous serial link protocol
What type of VPN allows a home user to connect to his office from his...
Which of the following would typically be installed on a home...
The Diffie-Hellman algorithm is used for key exchange?
PPP is supports both synchronous and asynchronous links
Data can only be sent over a Frame relay network when Virtual circuits...
A path that is not a successor but meets the feasible condition is...
LEASED LINES ARE CHEAPER THAN VPNS? TRUE OR FALSE
"A route cannot be advertised out the same interface upon which...
In an STP enabled network, Switches A, B, C and D are connected up to...
In order to ensure VPN connections are encrypted securely, ESP must be...
On an switched ethernet segment between two switches, you need to work...
You have configured 8 trunk links between Switch's A and B and...
IPSEC is made up of three protocols called AH,ESP and IKE. True or...
Using the Passive interface {inteface#} command within EIGRP router...
The switch which is forwarding the lowest cost BPDU onto a segment...
A switch's MAC table shows that it has source MAC address...
What terms describe what the Successor is when EIGRP is enabled?...
Select one from the following list which IPv6 does not support?
Two routers (A and B) are connected up via a serial link and their...
Which option describes the following "router sends packets and...
What is the field TTL in an IPv4 header equivalent to in an IPv6...
When typing "Show interface s0/1/0" you see the message...
Which one of the following packet types advertises routes, sent when...
A VC status of deleted is most likely the result of what? choose one
In EIGRP, K1= and K3= choose two
A router advertises a route with a metric of 16. What is this referred...
The distance to a destination advertised by a neighbor plus the cost...
IEE802.1D  is disabled on a topology consisting of four switches....
Which of the following NAT types will typically use access-lists?...
What advantages does IPv6 have over IPv4? choose one
Which protocols does EIGRP support? choose 4
Which of the following are 168Bits in size?
An  UP/Down status on a router could indicate what? choose 5
How many fields are there in an IPv6 header?
A metric of a given route as indicated by a neighbor router is called...
The AREA Authentication command is issued for OSPF Process 65535....
What is the default STP cost for an interface with bandwidth 1Gb
Spanning-tree portfast disable is typed on the switch. What mode was...
Which of the following IPv6 address types is equivalent to an APIPA...
In a new installation of Cisco routers and the creation of a VPN, a...
PPP has been configured on two routers and IP addresses correctly...
The command "SPANNING-tree PORTfast" can only be issued in...
If keepalives are not received by a neighbouring router, what will...
SIA occurs after what period of time?
In OSPF which of the following much match between neighbors in order...
Which of the following encryption types are 56bit in size?
WHich of the following OSPF network types will elect DRs and BDRs?
A router is connected to another router using a Back to Back DTE/DCE...
Host A received 5 copies of the same frame within the space of a few...
Which of the following fields exist in IPv4 but Not in IPv6?
Select two differences between RIPV1 AND RIPV2 ?
During a root switch election, what will each switch's cost to...
The type of VPN that allows offices in the same organisation to...
Which two commands when typed will display the PVC status codes?
When running RSTP between switches, what is the physical medium known...
Administrator Tedicus, issues the "Spanning-tree vlan 1 root...
ACCESS-ROUTER is connected to OFFICE-R1 using a serial link and a...
Engineer Ted has been asked to create a VPN connection between his...
In the IPv6 header, the field traffic class is tantamount to which...
Link local addresses are used to forward data
Looping frames can lead to? name two
Name three things that BPDU guard can help protect against?
What is the default STP cost of an ethernet interface? choose one
BPDU guard can be used to protect against what?
The following message appears on a switch...
The command "SPANNING-tree PORTfast DEfault" can only be...
What is the default value for the Hold down timer in RIPv2?
EIGRP SUMMARY ROUTES HAVE AD OF?
In a network, NOTTS-SW1 (SWITCH) is connected to R1 (ROUTER). DHCP...
Errors are occuring on a link and now the router's interface has...
Which of the following need to match in order for neighbor...
An Ipv6 host sends out a neighbor solicitation message. What type of...
The AH sub protocol in IPSec supports which of the following ? choose...
ACCESS-ROUTER is connected to OFFICE-R1 using a serial link and a...
Name 3 features of Eigrp?
A router is running EIGRP and when the topology table is viewed, a...
The network admin wants to setup a switched toplogy consisting of...
Select two routing loop prevention mechanisms and one routing protocol...
Select two encryption types which are symmetrical?
Which of the following OSPF networks elect DRs and BDRs?
The default hello interval for LAN connections in EIGRP is what?
What type of mapping has been used for 200.0.0.6 ? CHOOSE ONE ANSWER...
PPP Supports which of the following features? choose 4
Broadcast storms can lead to..... select two
Which of the following OSPF networks have default values of 10seconds...
Which of the following detects if a link is looped and then disables...
Select three features which IPv6 support which IPv4 did not ?
LCP supports which of the following features? choose 4
EIGRP packets that do not require acknowledgments are: ? choose two
Which of the following header fields exist in IPv4 but not in IPv6 ?...
The sub protocol ESP supports which of the following ? Choose two MAIN...
You are trying to configure LT2P but cannot find the port number and...
You run the following interface level command on your router and...
Which of the following EIGRP  packets use RTP? choose three
Which of the folloing are 128BIT in size? CHOOSE THREE
Which of the following can be sent as Unicast in EIGRP? choose 3
You use a packet capturing tool to record what is stored in the Hello...
When a Hello message is sent to a neighboring router every 5 or 60...
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