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2018 Aug 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?
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Layer 1
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Layer 2
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Layer 4
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Layer 6
Answer: B
Question No: 42 – (Topic 1)
Hubs are differentiated from switches in that between the two, only hubs have:
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A single collision domain.
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A single broadcast domain.
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Multiple collision domains.
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Multiple broadcast domains.
Answer: A
Question No: 43 – (Topic 1)
At which of the following layers of the OSI model does ASCII work?
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Session
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Transport
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Presentation
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Application
Answer: C
Question No: 44 – (Topic 1)
Which of the following is the definition of a DNS server?
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Hosts proprietary business applications
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Translates FQDN’s to IP addresses
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Provides network IDS/IPS security
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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?
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A record
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NS record
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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?
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1
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5
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10
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15
Answer: D
Question No: 47 – (Topic 1)
A bridge handles frames at which of the following layers of the OSI model?
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Network
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Session
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Transport
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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?
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Re-establish a new theory.
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Gather more information.
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Establish a plan of action.
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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?
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This is a private address which cannot be seen by external users.
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The address does not have the appropriate subnet mask assigned.
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This is a public address which can only be seen by internal users.
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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?
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Broadcast domain
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Distance vector
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Link state
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Collision domain
Answer: D
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