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Multiple Choice Questions

April 2nd, 2015 in TSHOOT v2 Go to comments

Question 1

Explanation

From the last line “K-value mismatch” we learn that the K values of two EIGRP routers are mismatched and EIGRP neighborship between two routers will not be formed.

Note: EIGRP K values are the metrics that EIGRP uses to calculate routes. Mismatched K values can prevent neighbor relationships from being established. By default K1 & K3 are set to 1 while K2, K4 and K5 are set to 0. We can change the EIGRP K values via the “metric weights tos k1 k2 k3 k4 k5” command under EIGRP router mode (tos: type of service must always be zero). For example:

Router(config-router)#metric weights 0 20 10 50 40 40

Question 2

Explanation

The following list of parameters must match between EIGRP neighbors in order to successfully establish neighbor relationships:

+ Autonomous System number.
+ K-Values (look at the previous lesson).
+ If authentication is used both: the key number, the password, and the date/time the password is valid must match.
+ The neighbors must be on common subnet (all IGPs follow this rule).

Therefore we don’t need to check EIGRP hello and hold timers because they don’t have to match. We should check if appropriate networks are included in the “network …” command of EIGRP on both routers.

Question 3

Explanation

For example in the topology below, R1 learned the Loopback0 interface of R6 via two equal paths R2-R4 and R3-R5:

traceroute_load_balance_topology.jpg

The routing table of R1 is shown below:

R1_show_ip_route.jpg

And the traceroute command from R1 to R6’s loopback0:

R1_traceroute.jpg

Traceroute works by sending packets with gradually increasing Time-To-Live (TTL) value, starting with TTL value of 1. The first router receives the packet, decrements the TTL value and drops the packet because it then has TTL value zero. The router sends an ICMP Time Exceeded message back to the source. The next set of packets are given a TTL value of 2, so the first router forwards the packets, but the second router drops them and replies with ICMP Time Exceeded. Proceeding in this way, traceroute uses the returned ICMP Time Exceeded messages to build a list of routers that packets traverse, until the destination is reached and returns an ICMP Echo Reply message.

The “1”, “2” and “3” in the traceroute output stands for the hop number. Therefore with the first hop (TTL is set to 1) we can see the packets are sent through 12.12.12.2 (R2) and 13.13.13.3 (R3). For the second hop (TTL is set to 2) they are 35.35.35.5 (R5) and 24.24.24.4 (R4)…

In conclusion we can use the traceroute command to check if the load-balancing is actually occurring.

Question 4

Explanation

IPSec transport mode (encrypting an IP GRE tunnel) is a commonly deployed option because it provides all the advantages of using IP GRE, such as IP Multicast protocol support (and, thus, also the support of routing protocols that utilize IP Multicast) and multiprotocol support. Furthermore, this option saves 20 bytes per packet over IPSec tunnel mode (encrypting an IP GRE tunnel) because an additional IP header is not required.

Reference: http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND/QoS-SRND-Book/IPSecQoS.html#pgfId-56035

Question 5

Explanation

IPSec alone does not support multicast which many dynamic routing protocols use. GRE tunnels helps IPSec overcome this disadvantage by handling the transportation of multiprotocol and IP multicast traffic (from site-to-site VPNs, for example).

With the p2p GRE over IPsec solution, all traffic between sites is encapsulated in a p2p GRE packet before the encryption process, simplifying the access control list used in the crypto map statements. The crypto map statements need only one line permitting GRE (IP Protocol 47).

Reference:

http://www.cisco.com/c/en/us/td/docs/security/vpn_modules/6342/vpn_cg/6342site3.html

http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/P2P_GRE_IPSec/P2P_GRE_IPSec/2_p2pGRE_Phase2.html

Question 6

Explanation

With the p2p GRE over IPsec solution, all traffic between sites is encapsulated in a p2p GRE packet before the encryption process, simplifying the access control list used in the crypto map statements.

Reference: http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/WAN_and_MAN/P2P_GRE_IPSec/P2P_GRE_IPSec/2_p2pGRE_Phase2.html

Comments (12) Comments
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  1. Mau
    November 25th, 2016

    Anyone please share MCQs..
    Thanks in advance :)

  2. Carl
    November 30th, 2016

    Hi , please share MCQS thanks a lot

  3. In1
    November 30th, 2016

    You don’t need the MCQ’s, if you memorize this concepts you will be able to answer correctly all of them. I passed the exam today with perfect score.

  4. Carl
    November 30th, 2016

    Thanks In1, but I refer the six MCQS. Thk

  5. Isabella
    December 13th, 2016

    Hey guys, I just wrote now in Canada. I Passed CCNP Routing and Switching 300-135 exam with 96%. This dumps http://www.grades4sure.com/300-135-exam-questions.html is valid but a few answers are wrong. Although I don’t expect to pass with a full score, right? If your aim is just to pass the exam, only by memorizing the dumps is enough. But if you want to master skills, you really need to practice more.

  6. MarxKnowswine
    December 15th, 2016

    Hi all
    I passed the exam today with 1000/1000.
    I had the 13 tickets and the 6 MCQ.
    Just a couple of things:
    in some of the tickets, for no apparent reason clients cannot ping anything (including themselves).
    Ping for ipv6 is “ping ipv6”.
    By the way, everything you need you can find it in the premium section.

  7. farne
    December 19th, 2016

    Hello, I have some questions about TSHOOT:

    1. The values (IP, devices names…) of the dumps are the same as in real exam?
    2. Need I configure something? Or just use “show …” commands?
    3. In the dumps are 6 MCQ, are the same as in real exam?

    I will really appreciate your help.

    Best regards.

  8. Anonymous
    December 25th, 2016

    Hello

    Anyone has the exam prep in VCE?

  9. Ahmed
    December 28th, 2016

    Hello
    i passed T_SHOOT today score 951
    6 Multiple Choice questions and 13 tickets NO Simlets
    all questions are here
    Good luck

  10. KIKO
    December 29th, 2016

    Hi Ahmed, Congratulations, did you answer just the questions without configs or you went through your configs and did them then selected your answers. Coz I saw you asking this questions before and need to confirm plz.

  11. user12
    January 10th, 2017

    Good Day!
    I passed exam on 6 January.
    There were 13 tickets and 6 Multiple Choice Questions.
    Thanks for you help.

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