200-301 practice questions 1,241–1,250

1. Question 1241 · 1334 in bank

   

   Refer to the exhibit. An IPv6 address must be obtained automatically on the LAN interface on R1. Which command must be implemented to accomplish the task?

   • Aipv6 address autocontig
   • Bipv6 address dhcp
   • Cipv6 address fe80::/10
   • Dipv6 address 2001:db8:d8d2:1008:4332:45:0570::/64

   Show answer

   Answer: B

   Explanation

   "ipv6 address autoconfig": The interface should only obtain its configuration using RAs and the stateless address autoconfiguration (SLAAC). With ipv6 address autoconfig, a router will not attempt to contact DHCPv6. "ipv6 address dhcp": DHCPv6 does not have an option to advertise a default gateway, and the default gateway still has to be discovered through RAs. It will depend on DHCPv6 to discover its address and prefix, and on RAs to discover its gateway. So if the DHCPv6 is in the same LAN that the R1 LAN interface is the best option. B is the best correct answer https://community.cisco.com/t5/ipv6/ipv6-address-autoconfig-vs-ipv6-address-dhcp/td-p/2710597

   Source: Adapted from community discussion — DavidCisco

   References

   • cisco.com documentation
   • Cisco documentation

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2. Question 1242 · 1334 in bank

   

   Refer to the exhibit. A network engineer is updating the configuration on router R1 to connect a new branch office to the company network. R2 has been configured correctly. Which command must the engineer configure so that devices at the new site communicate with the main office?

   • Aip route 172.25.25.1 255.255.255.255 g0/2
   • Bip route 172.25.25.0 255.255.255.0 192.168.2.2
   • Cip route 172.25.25.0 255.255.255.0 192.168.2.1
   • Dip route 172.25.25.1 255.255.255.255 g0/1

   Show answer

   Answer: B

   Explanation

   but all the destinations in the ip route command are 172.25.25.0, so the route to the new site, the question is written in a wrong way

   Source: Adapted from community discussion — Dutch012

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3. Question 1243 · 1334 in bank

   A network engineer must migrate a router loopback interface to the IPv6 address space. If the current IPv4 address of the interface is 10.54.73.1/32, and the engineer configures IPv6 address 0:0:0:0:0:ffff:a36:4901, which prefix length must be used?

   • A/64
   • B/96
   • C/124
   • D/128

   Show answer

   Answer: D

   Explanation

   Ya'll who gone and done select B are getting yourselves confused. Yes I'm talking to you Junior_Network and Rick3390. ::ffff:0:0/96 is simply the CIDR address block for IPv4 mapped addresses. The /96 prefix length is used because the remaining 32 bits (128-96) are used for the 32 bits needed in IPv4. So in this instance we take the IPv4 address - 10.54.73.1 - and format each octet as hex. We get 0A.36.49.01. We then format this as two consecutive octets, getting 0A36:4901. We finally append the IPv6 address block for IPv4 mapped addresses and get a new IPv6 host address: ::ffff:0:0:A36:4901/128 The prefix length is 128, because all 128 bits are fixed. Nothing works different about that here.

   Source: Adapted from community discussion — [Removed]

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4. Question 1244 · 1334 in bank

   A Cisco engineer notices that two OSPF neighbors are connected using a crossover Ethernet cable. The neighbors are taking too long to become fully adjacent. Which command must be issued under the interface configuration on each router to reduce the time required for the adjacency to reach the FULL state?

   • Aip ospf dead-interval 40
   • Bip ospf network broadcast
   • Cip ospf priority 0
   • Dip ospf network point-to-point

   Show answer

   Answer: D

   Explanation

   C and D are the same, both will prevent the interface from participating in the OSPF DR/BDR election. A is the default dead timer. I would pick D only because the default OPSF network type for the Ethernet interface is broadcast.

   Source: Adapted from community discussion — AbdullahMohammad251

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5. Question 1245 · 1334 in bank

   

   Refer to the exhibit. PC A is communicating with another device at IP address 10.227.225.255. Through which router does router Y route the traffic?

   • Arouter A
   • Brouter B
   • Crouter C
   • Drouter D

   Show answer

   Answer: D

   Explanation

   Guys let's check the ranges : 10.0.0.0 /8 mask 255.0.0.0 has a BA =10.255.255.255 has the IP address included in range 10.128.0.0/9 mask 255.128.0.0 has a BA =10.255.255.255 has the IP address included in range 10.224.0.0/11 mask 255.224.0.0 has a BA= 10.255.255.255 has the IP address included in range but here we have the longest match /11 and the right answer. 10.224.0.0/15 mask 255.254.0.0 has a BA= 10.225.255.255 (we have the last 1 bit from HOST that gets added to Network Address) 224+1 10.223.0.0/24 mask 255.255.255.0 > BA= 10.223.0.255 10.224.0.0/24 mask 255.255.255.0 > BA 10.224.0.255 10.226.34.0/24 mask 255.255.255.0 > BA 10.226.34.255

   Source: Adapted from community discussion — matass_md

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6. Question 1246 · 1334 in bank

   

   Refer to the exhibit. A packet sourced from 10.10.10.32 is destined for the Internet. What is the administrative distance for the destination route?

   • A0
   • B1
   • C2
   • D32

   Show answer

   Answer: B

   Explanation

   This makes me angry at Cisco. Why try and trick people!? Look at the word SOURCED not destined. Then you realize that it's the default internet address of 0.0.0.0. STATIC administrative distance is 1.

   Source: Adapted from community discussion — JJY888

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7. Question 1247 · 1334 in bank

   

   Refer to the exhibit. Which format matches the Modified EUI-64 IPv6 interface address for the network 2001:db8::/64?

   • A2001:db8::5000:00ff:fe04:0000/64
   • B2001:db8::4332:5800:41ff:fe06:/64
   • C2001:db8::5000:0004:5678:0090/64
   • D2001:db8::5200:00ff:fe04:0000/64

   Show answer

   Answer: D

   Explanation

   Given MAC = 50 00 00 04 00 00 To make it EUI-64 IPv6, insert FFEE in the middle of the MAC, so it will become: 50 00 00 FF FE 04 00 00 After this, "5" in binary will be written as "0101" and "0" in binary as "0000" OR we can say "50" in binary can be written as 01010"0"0. Now, flip the 7th bit, so it will become "010100"1"0" and now this "010100"1"0" can again be written in decimal as "52" after flipping the 7th bit. So, finally it will become: 52 00 00 FF FE 04 00 00 And our EUI-64 IPv6 will be: 2001:db8::5200:00FF:FE04:0000 /64

   Source: Adapted from community discussion — Vikramaditya_J

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8. Question 1248 · 1334 in bank

   What is the benefit of using FHRP?

   • Areduced ARP traffic on the network
   • Bbalancing traffic across multiple gateways in proportion to their loads
   • Chigher degree of availability
   • Dreduced management overhead on network routers

   Show answer

   Answer: C

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9. Question 1249 · 1334 in bank

   Why is a first-hop redundancy protocol implemented?

   • Ato enable multiple switches to operate as a single unit
   • Bto provide load-sharing for a multilink segment
   • Cto prevent loops in a network
   • Dto protect against default gateway failures

   Show answer

   Answer: D

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10. Question 1250 · 1334 in bank

    

    Refer to the exhibit. A network engineer executes the show ip route command on router D. What is the next hop to network 192.168.1.0/24 and why?

    • AThe next hop is 10.0.2.1 because it uses distance vector routing.
    • BThe next hop is 10.0.0.1 because it has a higher metric.
    • CThe next hop is 10.0.2.1 because it is a link-state routing protocol.
    • DThe next hop is 10.0.0.1 because it has a better administrative distance.

    Show answer

    Answer: D

    Explanation

    There isn't redistribution Eigrp - Eigrp, only Eigrp - OSPF. The Eigrp has a AS 100 always. It's internal Eigrp, no external

    Source: Adapted from community discussion — JuanluRea

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200-301 practice, question 1241. 1334 questions available.