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2018 Mar CompTIA Official New Released JK0-023
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CompTIA Network certification
Question No: 41 – (Topic 1)
Frame relay occurs at which of the following layers of the OSI model?
-
Layer 1
-
Layer 2
-
Layer 4
-
Layer 6
Answer: B
Question No: 42 – (Topic 1)
Hubs are differentiated from switches in that between the two, only hubs have:
-
A single collision domain.
-
A single broadcast domain.
-
Multiple collision domains.
-
Multiple broadcast domains.
Answer: A
Question No: 43 – (Topic 1)
At which of the following layers of the OSI model does ASCII work?
-
Session
-
Transport
-
Presentation
-
Application
Answer: C
Question No: 44 – (Topic 1)
Which of the following is the definition of a DNS server?
-
Hosts proprietary business applications
-
Translates FQDN’s to IP addresses
-
Provides network IDS/IPS security
-
Assigns IP addresses to network devices
Answer: B
Question No: 45 – (Topic 1)
Which of the following DNS record types provides the hostname to IP address mapping?
-
A record
-
NS record
-
CNAME record
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MX record
Answer: A
Question No: 46 – (Topic 1)
Which of the following is the MAXIMUM hop count for RIP before the network is considered
converged?
-
1
-
5
-
10
-
15
Answer: D
Question No: 47 – (Topic 1)
A bridge handles frames at which of the following layers of the OSI model?
-
Network
-
Session
-
Transport
-
Data Link
Answer: D
Question No: 48 – (Topic 1)
Joe, a technician, has identified a problem, established and confirmed a theory, and has attempted to resolve the problem. Joe, however, does not appear to have the rights to make the needed changes. Which of the following should he do NEXT?
-
Re-establish a new theory.
-
Gather more information.
-
Establish a plan of action.
-
Escalate the problem.
Answer: D
Question No: 49 – (Topic 1)
Lisa, a network technician, is attempting to map a FQDN to an internal server at the address of 10.0.0.15 without NAT/PAT. Which of the following is the reason this will ultimately not work?
-
This is a private address which cannot be seen by external users.
-
The address does not have the appropriate subnet mask assigned.
-
This is a public address which can only be seen by internal users.
-
This is a private address which can only be seen by external users.
Answer: A
Question No: 50 – (Topic 1)
Which of the following BEST describes a switch port?
-
Broadcast domain
-
Distance vector
-
Link state
-
Collision domain
Answer: D
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