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Exam 200-301 topic 1 question 519 discussion

Actual exam question from Cisco's 200-301
Question #: 519
Topic #: 1
[All 200-301 Questions]

What are two roles of Domain Name Services (DNS)? (Choose two.)

  • A. builds a flat structure of DNS names for more efficient IP operations
  • B. encrypts network Traffic as it travels across a WAN by default
  • C. improves security by protecting IP addresses under Fully Qualified Domain Names (FQDNs)
  • D. enables applications to identify resources by name instead of IP address
  • E. allows a single host name to be shared across more than one IP address
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Suggested Answer: DE 🗳️

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Sim_James_27
Highly Voted 2 years, 11 months ago
E is correct-having multiple ips assigned to one host, can do dns load balancing (like round robin), mostly i have used this terminology on SQL clusters and File share clusters
upvoted 10 times
kyleptt
1 year, 5 months ago
thanks for this !
upvoted 1 times
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Mozah
Highly Voted 2 years, 10 months ago
nslookup can support "D". D and E are correct
upvoted 5 times
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[Removed]
Most Recent 7 months, 2 weeks ago
Selected Answer: DE
D & E are correct
upvoted 2 times
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shakyak
3 years ago
Can some one justify E?
upvoted 1 times
Dante_Dan
2 years, 10 months ago
You can check it yourself :) Go to a command prompt and type: nslookup examtopics.com You will see something like this: Server: dns.google Address: 8.8.8.8 Non-authoritative answer: Name: examtopics.com Addresses: 2606:4700:3032::6815:bb7 2606:4700:3034::ac43:a6ef 172.67.166.239 104.21.11.183 As you can see, more than one IP addresses (even an IPv6 address) are included under the same domain name
upvoted 17 times
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cocoto4_111
3 years ago
Say you have 3 servers hosting a webpage at webpage.com, so instead of the user typing 1.1.1.1, 1.1.1.2 or 1.1.1.3 to get to the server with the least load you can load balance this via the hostname. Also if you need to change the ip addresses users can still use the same name(webpage.com)
upvoted 14 times
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bootloader_jack
3 years, 1 month ago
is D correct?
upvoted 1 times
DaBest
3 years, 1 month ago
D + E are correct
upvoted 2 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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