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2018 May CompTIA Official New Released JK0-023
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CompTIA Network certification
Question No: 151 – (Topic 1)
Which two layers of the OSI model make up the TCP/IP model Network Interface layer?
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Application and Transport
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Transport and Session
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Physical and Data Link
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Session and Presentation
Answer: C
Question No: 152 – (Topic 1)
Multiprotocol Label Switching (MPLS) operates at which of the following layers of the OSI model? (Select TWO).
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Layer 1
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Layer 2
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Layer 3
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Layer 4
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Layer 5
Answer: B,C
Question No: 153 – (Topic 1)
Which TCP/IP model layer does the OSI model layer named #39;session#39; respond to?
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Application
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Presentation
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Internet
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Transport
Answer: A
Question No: 154 – (Topic 1)
Which of the following records allows for reverse DNS lookups?
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AAAA
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A
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PTR
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CNAME
Answer: C
Question No: 155 – (Topic 1)
Which of the following uses eight groups of characters for addressing?
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MAC
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IPv4
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IPv6
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DHCP
Answer: C
Question No: 156 – (Topic 1)
Which of the following protocols is Kim, a user, utilizing if no handshake or data reliability are required?
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TCP
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FTP
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TFTP
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UDP
Answer: D
Question No: 157 – (Topic 1)
At which layer of the OSI and TCP/IP model would HTTP and FTP be found?
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Application
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Network
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Session
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Data Link
Answer: A
Question No: 158 – (Topic 1)
A technician receives a work order that a user can no longer access any external websites. The user is the only one affected, but can still access websites by IP address. Which of the following is the MOST likely cause?
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The workstation has been removed from the domain and needs to be re-added in directory services.
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The workstation is configured to use the IPv4 protocol instead of IPv6.
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The workstation is configured with an incorrect IP address of the DNS server.
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The workstation’s DHCP IP address has expired and has assigned itself an APIPA address.
Answer: C
Question No: 159 – (Topic 1)
Which of the following describes the amount of time it takes for a packet to transmit from
one switch to another?
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Hop count
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Latency
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MTU limit
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Distance vector
Answer: B
Question No: 160 – (Topic 1)
Logically separating the ports on a switch without physically separating them can be done using which of the following?
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Routing tables
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Hub logic
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Spanning tree protocol
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VLANs
Answer: D
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