200-301 practice questions 701–710

1. Question 701 · 1334 in bank

   

   Refer to the exhibit. The default-information originate command is configured under the R1 OSPF configuration. After testing, workstations on VLAN 20 at Site B cannot reach a DNS server on the Internet. Which action corrects the configuration issue?

   • AAdd the default-information originate command on R2.
   • BAdd the always keyword to the default-information originate command on R1.
   • CConfigure the ip route 0.0.0.0 0.0.0.0 10.10.10.18 command on R1.
   • DConfigure the ip route 0.0.0.0 0.0.0.0 10.10.10.2 command on R2.

   Show answer

   Answer: C

   Explanation

   "default-information originate" command results in advertising a default route. But, the router which it was configured should first have a default route. As you can see, R1 does not have a default route. That's why the answer is correct. configuring a default route on R1 will result in R1 advertising a default route to R2. R2 nets will now have a default route pointing to R1, then to internet where DNS server resides.

   Source: Adapted from community discussion — pjvillareal

   References

   • Cisco documentation

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2. Question 702 · 1334 in bank

   

   Refer to the exhibit. With which metric was the route to host 172.16.0.202 learned?

   • A0
   • B110
   • C38443
   • D3184439

   Show answer

   Answer: C

   Explanation

   I'm assuming by metric it means to ignore the 110 OSPF AD and select the cost. A is wrong because the Static route doesn't reach 172.16.0.202 B is wrong because that is the OSPF AD not metric. Which leaves C/D... Host - 172.16.0.202 falls under OSPF 172.16.0.128/25 202 in binary 11001[100] .200 - .207 192 in binary 11000[000] .192 - .199 Which means the host can't reach the EIGRP route therefore the OSPF route is used and has a metric of 38443

   Source: Adapted from community discussion — uevenasdf

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3. Question 703 · 1334 in bank

   How do TCP and UDP differ in the way they guarantee packet delivery?

   • ATCP uses retransmissions, acknowledgment, and parity checks, and UDP uses cyclic redundancy checks only
   • BTCP uses two-dimensional parity checks, checksums, and cyclic redundancy checks, and UDP uses retransmissions only
   • CTCP uses checksum, acknowledgements, and retransmissions, and UDP uses checksums only
   • DTCP uses checksum, parity checks, and retransmissions, and UDP uses acknowledgements only

   Show answer

   Answer: C

   Explanation

   Ref: TCP vs UDP - Difference and Comparison | Diffen “… Comparison chart … Error Checking TCP does error checking and error recovery. Erroneous packets are retransmitted from the source to the destination. UDP does error checking but simply discards erroneous packets. Error recovery is not attempted. …” A. TCP uses retransmissions, acknowledgment, and parity checks, and UDP uses cyclic redundancy checks only Wrong answer. B. TCP uses two-dimensional parity checks, checksums, and cyclic redundancy checks, and UDP uses retransmissions only Wrong answer. C. TCP uses checksum, acknowledgements, and retransmissions, and UDP uses checksums only Correct answer D. TCP uses checksum, parity checks, and retransmissions, and UDP uses acknowledgements only Wrong answer.

   Source: Adapted from community discussion — [Removed]

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4. Question 704 · 1334 in bank

   A user configured OSPF in a single area between two routers. A serial interface connecting R1 and R2 is running encapsulation PPP. By default, which OSPF network type is seen on this interface when the user types show ip ospf interface on R1 or R2?

   • Anonbroadcast
   • Bpoint-to-point
   • Cpoint-to-multipoint
   • Dbroadcast

   Show answer

   Answer: B

   Explanation

   The default OSPF network type for HDLC and PPP on Serial link is point-to-point (while the default OSPF network type for Ethernet link is Broadcast).

   Source: Adapted from community discussion — Retxed

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5. Question 705 · 1334 in bank

   Which MAC address is recognized as a VRRP virtual address?

   • A0000.5E00.010a
   • B0005.3709.8968
   • C0000.0C07.AC99
   • D0007.C070.AB01

   Show answer

   Answer: A

   Explanation

   Answer A - 1 VRRP over Ethernet. Over Ethernet, VRRP routers use a common MAC address of the format 00:00:5E: 00:01:XX. The first three octets are derived from the IANA's OUI. The next two octets (00:01) indicate the address block assigned to the VRRP protocol by IANA

   Source: Adapted from community discussion — Kaygol

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6. Question 706 · 1334 in bank

   Select 2

   

   Refer to the exhibit. The New York router is configured with static routes pointing to the Atlanta and Washington sites. Which two tasks must be performed so that the Se0/0/0 interfaces on the Atlanta and Washington routers reach one another? (Choose two.)

   • AConfigure the ipv6 route 2023::/126 2012::1 command on the Atlanta router.
   • BConfigure the ipv6 route 2012::/126 2023::2 command on the Washington router.
   • CConfigure the ipv6 route 2012::/126 2023::1 command on the Washington router.
   • DConfigure the ipv6 route 2023::/126 2012::2 command on the Atlanta router.
   • EConfigure the ipv6 route 2012::/126 s0/0/0 command on the Atlanta router.

   Show answer

   Answer: BD

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7. Question 707 · 1334 in bank

   A router running EIGRP has learned the same route from two different paths. Which parameter does the router use to select the best path?

   • Aas-path
   • Badministrative distance
   • Cmetric
   • Dcost

   Show answer

   Answer: C

   Explanation

   A tricky question. Let me try to explain: According to the question, the destination is same i.e. same route, but it's learned using two different paths. Normally, router uses administrative distance as a parameter to select the best path when multiple routing protocols are used, but since both paths are running with EIGRP, so both have the same AD (=90) so it's a tie. Next the router will consider the metric value for path selection. So, C should be the correct option here.

   Source: Adapted from community discussion — Vikramaditya_J

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8. Question 708 · 1334 in bank

   An engineer configured an OSPF neighbor as a designated router. Which state verifies the designated router is in the proper mode?

   • AInit
   • B2-way
   • CExchange
   • DFull

   Show answer

   Answer: D

   Explanation

   D is the correct answer. A DR or a BDR router will always need to reach a full state relationship with all neighbours (DROther included!) for correct operation. A 2-way state will only be considered correct and stable between two DROther routers.

   Source: Adapted from community discussion — Demi_UY_Scuti

   References

   • Cisco documentation

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9. Question 709 · 1334 in bank

   

   Refer to the exhibit. Which route does R1 select for traffic that is destined to 192.168.16.2?

   • A192.168.16.0/21
   • B192.168.16.0/24
   • C192.168.16.0/26
   • D192.168.16.0/27

   Show answer

   Answer: D

   Explanation

   The destination IP addresses match all four entries in the routing table but the 192.168.16.0/27 has the longest prefix so it will be chosen. This is called the ג€longest prefix matchג€ rule.

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10. Question 710 · 1334 in bank

    

    Refer to the exhibit. If configuring a static default route on the router with the ip route 0.0.0.0 0.0.0.0 10.13.0.1 120 command, how does the router respond?

    • AIt starts sending traffic without a specific matching entry in the routing table to GigabitEthernet0/1.
    • BIt immediately replaces the existing OSPF route in the routing table with the newly configured static route.
    • CIt starts load-balancing traffic between the two default routes.
    • DIt ignores the new static route until the existing OSPF default route is removed.

    Show answer

    Answer: D

    Explanation

    Because Static route as default has 1 AD but it was manually configured to 120 which is greater than 110. So, it won't be considered until former OSPF route is not removed.

    Source: Adapted from community discussion — kaifene

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200-301 practice, question 701. 1334 questions available.