200-901 practice questions 171–180

1. Question 171 · 530 in bank

   Refer to the exhibit.

   

   Which Device limits traffic between Server 1 and Server 2?

   • ADevice B
   • BDevice C
   • CDevice D
   • DDevice E

   Show answer

   Answer: C

   Explanation

   The question says "limits", for me that is the function of the L2 Switch, it separates traffic in different broadcast domains, whereas a router "forwards" traffic based on the routing table and the routing protocol. The answer for me is D - Device E Layer 2

   Source: Adapted from community discussion — ogbm77

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2. Question 172 · 530 in bank

   What is the purpose of a MAC address on a network device?

   • Aunique network address that identifies the network interface of a device
   • Bunique network interlace address that is provided by the DHCP server
   • Cunique hardware address that identifies the network interface of a device
   • Dunique hardware interface address that is provided by the central switch

   Show answer

   Answer: C

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3. Question 173 · 530 in bank

   How are load balancers used in modern application deployments?

   • ATurn off traffic and take down compute units, then update and bring the compute units back up.
   • BAllow traffic to continue as new compute units are brought up and old compute units are taken down.
   • CAllow HTTP and HTTPS traffic to continue as old compute units are discontinued before new units are brought up.
   • DBring up new compute units, test the compute units, and switch the traffic from old units to new units.

   Show answer

   Answer: B

   Explanation

   D makes sense to me, DevNet Cisco course specifically calls out how important it is to test a small number of users on new code/services and then slowly move more and more to the new service. A load balancer would be perfect for that.

   Source: Adapted from community discussion — snowbow

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4. Question 174 · 530 in bank

   Which protocol must be allowed on the firewall so that NTP services work properly?

   • ATCP
   • BICMP
   • CBGP
   • DUDP

   Show answer

   Answer: D

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5. Question 175 · 530 in bank

   A developer is reviewing a code that was written by a colleague. It runs fine, but there are many lines of code to do a seemingly simple task repeatedly. Which action organizes the code?

   • ARefactor the code by removing any unnecessary tests.
   • BReverse engineer and rewrite the code logic.
   • CUsing functions, rewrite any pieces of code that are repeated.
   • DModify the code to use loops.

   Show answer

   Answer: C

   Explanation

   Problem: "but there are many lines of code to do a seemingly simple task repeatedly." Question: "Which action organizes the code since the problem is the code doing a simple task repeatedly?" The answer is C because when the code performs a discrete (or simple) task, even if it happens only once, may be a candidate for encapsulation and the question makes clear that the task code is being used more than once.

   Source: Adapted from community discussion — designated

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6. Question 176 · 530 in bank

   Which protocol runs over TCP port 22?

   • ASSH
   • BNETCONF
   • CHTTP
   • DTelnet

   Show answer

   Answer: A

   Explanation

   Why can't I see questions beyond 165? I even tried setting it to just view 16-173. Nothing... "Viewing questions 1-165 out of 173 questions"

   Source: Adapted from community discussion — richard2865

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7. Question 177 · 530 in bank

   What is the purpose of the first three pairs of digits in a MAC address?

   • Adefines packet forwarding priority sent or received by the adapter
   • Bdefines a routing identifier for the client
   • Cindicates vendor of the network card or adapter
   • Dindicates the IP address of the client in Hex

   Show answer

   Answer: C

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8. Question 178 · 530 in bank

   

   Refer to the exhibit. What does the load balancer enable in the network topology?

   • Ahosted application to access Internet services
   • Bexternal requests to be routed to the application servers
   • Capplication to access the database server
   • Dworkstations to access the Internet

   Show answer

   Answer: B

   Explanation

   Obviously B. Even the arrow in LB means that. Unbelievable the number of errors in this dump. The best place to check is here in ExamTopics. Community helps a lot!

   Source: Adapted from community discussion — anonymous1966

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9. Question 179 · 530 in bank

   Select 2

   What are two benefits of using VLANs? (Choose two.)

   • Alimits the devices that can join the network
   • Benables the logical grouping of devices that belong to different Layer 2 devices
   • Csegments the broadcast domain
   • Dallows all network devices to be accessible from any host on the network
   • Eextends the broadcast domain

   Show answer

   Answer: BC

   Explanation

   Reduce the size broadcast domain Increase the number of broadcast domains (no confuse with extends the size) B and C are correct

   Source: Adapted from community discussion — aplicacion101

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10. Question 180 · 530 in bank

    Select 2

    What are two considerations when selecting the `best route` for a network device to reach its destination? (Choose two.)

    • AMAC address
    • BIP address
    • Cmetrics
    • Dadministrative distance
    • Esubnet mask

    Show answer

    Answer: CD

    Explanation

    C D I see what you guys are saying but if you have two exact same mask it doesn't matter, it takes the prefix not the mask itself (even when it depends on the mask)

    Source: Adapted from community discussion — Need_to_pass

    References

    • Cisco documentation

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200-901 practice, question 171. 530 questions available.