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2018 Aug CompTIA Official New Released JK0-023
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CompTIA Network certification
Question No: 1 – (Topic 1)
Which of the following OSI model layers is used for logical addressing?
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Physical
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Transport
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Network
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Data link
Answer: C
Question No: 2 – (Topic 1)
Which of the following protocols uses port 3389?
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IMAP
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DHCP
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SSH
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RDP
Answer: D
Question No: 3 – (Topic 1)
Which of the following is a public class C IP address?
A. 4.2.2.2
B. 194.178.12.54
C. 175.35.46.60
D. 192.168.1.34
Answer: B
Question No: 4 – (Topic 1)
How many collision domains and broadcast domains are present on a 24-port switch with no VLAN assignments?
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1 collision domain, 1 broadcast domain
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1 collision domain, 24 broadcast domains
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24 collision domains, 1 broadcast domain
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24 collision domains, 24 broadcast domains
Answer: C
Question No: 5 – (Topic 1)
Lisa, an administrator, attempts to open a web page and sees the following error: ‘Error 404: Page not found’. She then uses the ping command and finds that the default gateway cannot be pinged. At which of the following layers does the problem MOST likely reside?
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Layer 1
-
Layer 4
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Layer 5
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Layer 7
Answer: A
Question No: 6 – (Topic 1)
Which of the following is the broadcast address for a network defined as 192.168.0.0/24?
A. 192.168.0.255
B. 192.168.0.1
C. 192.168.0.0
D. 192.168.0.253
Answer: A
Question No: 7 – (Topic 1)
Which of the following DNS records would a web browser access to determine the IP address of an Internet web page?
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CNAME
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A
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MX
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PTR
Answer: B
Question No: 8 – (Topic 1)
Which of the following protocols is MOST commonly associated with VoIP?
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LDAP
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HTTPS
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SIP
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SCP
Answer: C
Question No: 9 – (Topic 1)
Which of the following should be used when throughput to the destination network is a priority?
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MTU
-
Hop count
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Reliability of the path
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Bandwidth
Answer: D
Question No: 10 – (Topic 1)
An administrator is using a packet sniffer to try to determine what is causing the traffic on the network. The administrator sees a lot of packets on port 25. Which of the following traffic types is MOST likely using port 25?
-
SMTP
-
SSH
-
DNS
-
TELNET
Answer: A
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