300-410 practice questions 511–520

1. Question 511 · 578 in bank

   

   Refer to the exhibit. The default route is not advertised to the neighboring router. Which action resolves the issue?

   • AConfigure the default-information originate command under OSPF
   • BConfigure OSPF on the Dialer0 interface.
   • CConfigure the redistribute static metric 200 subnets command under OSPF.
   • DConfigure the network 0.0.0.0 255.255.255.255 area 0 command under OSPF

   Show answer

   Answer: A

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2. Question 512 · 578 in bank

   

   Refer to the exhibit. An engineer must ensure that R3 sees only type 1 and 2 LSAs in area 1. Which command must the engineer apply on R2?

   • Aarea 1 nssa no-summary
   • Barea 1 stub
   • Carea 1 stub nssa
   • Darea 1 stub no-summary

   Show answer

   Answer: D

   Explanation

   Stub: type 1 2 3 LSA stub no summary --> allows Type 1 2 originated inside the stub area itself. default route (a single type 3 default route, that prevents type 3 inter-area routes) that points to type 1 2 3 LSA's on the outside of the stub area NSSA Type 1 2 3 7 LSA NSSA no-summary blocks inter-area routes. Gives 1 default route to outside of the NSSA. NSSA no-summary --> type 1 2 7 inside the area itself, one default route to inter-area and Type 5 external routes

   Source: Adapted from community discussion — bk989

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3. Question 513 · 578 in bank

   A network administrator is troubleshooting a high utilization issue on the route processor of a router that was reported by NMS. The administrator logged into the router to check the control plane policing and observed that the BGP process is dropping a high number of routing packets and causing thousands of routes to recalculate frequently. Which solution resolves this issue?

   • AShape the pir for BGP, conform-action set-prec-transmit, and exceed action set-frde-transmit.
   • BPolice the pir for BGP, conform-action set-prec-transmit, and exceed action set-clp-transmit.
   • CShape the cir for BGP, conform-action transmit, and exceed action transmit.
   • DPolice the cir for BGP, conform-action transmit, and exceed action transmit.

   Show answer

   Answer: D

   Explanation

   This is how I see it. As Huntkey mentioned, the issue is not described as relating to ATM or Frame Relay, so we can ignore A and B. Then we we need to choose between C and D. C is for shaping, but you won't achieve shaping with the commands "conform-action transmit action-transmit", so C is not a valid solution. Excluding wrong answers, D is left.

   Source: Adapted from community discussion — HungarianDish_111

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4. Question 514 · 578 in bank

   DRAG DROP - Drag and drop the terminology from the left onto the corresponding definitions on the right.

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   

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5. Question 515 · 578 in bank

   Select 2

   Which two label distribution methods are used by routers in MPLS? (Choose two.)

   • ALDP discovery hello message
   • BLDP session protection message
   • Cdownstream unsolicited
   • Ddownstream on demand
   • Etargeted hello message

   Show answer

   Answer: CD

   Explanation

   provided seems correct After the LDP TCP connection session is established, the LSRs negotiate the session parameters, including the method of label distribution to be used. Two methods are available: Downstream Unsolicited: An LSR advertises label mappings to peers without being asked to. Downstream on Demand: An LSR advertises label mappings to a peer only when the peer asks for them. https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ldp/configuration/xe-16-11/mp-ldp-xe-16-11-book/mp-ldp.html

   Source: Adapted from community discussion — chaba7654321

   References

   • Cisco documentation

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6. Question 516 · 578 in bank

   

   Refer to the exhibit. HostA and HostB cannot receive IP addresses from the DHCP server. The switches are configured with the DHCP snooping. Which configuration on SW3 resolves the issue?

   

   • Aip dhcp relay information option-insert
   • Bno ip dhcp snooping information option
   • Cip dhcp server use subscriber-id client-id
   • Dip helper-address 1.0.0.2

   Show answer

   Answer: B

   Explanation

   Correct answer is B. The reason why D is incorrect because the ip helper address for ipv6 is different from ipv4. R1# config t Enter configuration commands, one per line. End with CNTL/Z. R1(config)# interface gigabitethernet0/0 R1(config-if)# ipv6 dhcp relay destination 2001:db8:a:b::7

   Source: Adapted from community discussion — Brahim90

   References

   • cisco.com documentation

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7. Question 517 · 578 in bank

   What is a MPLS PHP label operation?

   • ADownstream node signals to remove the label.
   • BIt uses implicit-NULL for traffic congestion from source to destination forwarding.
   • CPE removes the outer label before sending to the P router.
   • DIt improves P router performance by not performing multiple label lookup.

   Show answer

   Answer: A

   Explanation

   A seems OK, Penultimate Hop Popping will mean that the P before the PE pops the label as the P knows the PE can directly route it. The answer A will just indicate that the PE signals the P to do this.

   Source: Adapted from community discussion — Pietjeplukgeluk

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8. Question 518 · 578 in bank

   

   Refer to the exhibit. Branch 2 hosts cannot receive dynamic IP addresses. Which action resolves the issue?

   

   

   • AConfigure the ip helper command on the Layer 2 switch SW2 interfaces.
   • BConfigure the ip helper command on the Interface GigabltEthernet 0/0 of the DHCP router.
   • CConfigure the ip helper command on the Interface GigabltEthernet 0/2 of the DHCP router.
   • DConfigure the ip helper command on the interface GigabltEthernet 0/2 of the R2 router.

   Show answer

   Answer: D

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9. Question 519 · 578 in bank

   Which feature filters the IPv6 traffic on Layer 2 untrusted ports?

   • AIPv6 Source Guard
   • BBinding Table Recovery
   • CIPv6 RA Guard
   • DDHCPv6 Guard

   Show answer

   Answer: A

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10. Question 520 · 578 in bank

    Select 2

    What are the two benefits of using BFD? (Choose two.)

    • Asynchronous path determination
    • Bsubsecond failure detection
    • Csupports ail routing protocols
    • Dsupports UDLD failure
    • Eforwarding path failure detection

    Show answer

    Answer: BE

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300-410 practice, question 511. 578 questions available.