[Free] 2018(May) EnsurePass Dumpsleader CompTIA JK0-023 Dumps with VCE and PDF 601-610

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2018 May CompTIA Official New Released JK0-023
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CompTIA Network certification

Question No: 601 – (Topic 5)

A company wants to only allow incoming HTTP and HTTPS traffic on their public wireless network. Which of the following port numbers should be the only allowed open ports on the firewall to accomplish this? (Select TWO).

  1. 20

  2. 80

C. 143

D. 443

E. 8080

Answer: B,D

Question No: 602 – (Topic 5)

A network administrator is setting up a WAP and wants to disable the ability of gaining access from the parking garage. Which of the following should the network administrator review?

  1. Signal strength

  2. SSID name

  3. WPA2 encryption

  4. WEP encryption

Answer: A

Question No: 603 – (Topic 5)

An administrator determines there are an excessive number of packets being sent to a web server repeatedly by a small number of external IP addresses. This is an example of which of the following attacks?

  1. DDoS

  2. Viruses

  3. Worms

  4. Man-in-the-middle

Answer: A

Question No: 604 – (Topic 5)

Which of the following would be used to place extranet servers in a separate subnet for security purposes?

  1. VPN

  2. NAT

  3. DMZ

  4. IDS

Answer: C

Question No: 605 – (Topic 5)

A network administrator is tasked with blocking unwanted spam which is being relayed by an internal email server. Which of the following is the FIRST step in preventing spam that is originating from bots on the network?

  1. Closing off port 25 on the firewall

  2. Closing off port 53 on the firewall

  3. Turning off the SMTP service on the email server

  4. Turning off the IMAP service on the email server

Answer: A

Question No: 606 – (Topic 5)

Which of the following protocols is used to provide secure authentication and encryption over non-secure networks?


  2. TLS

  3. PPTP

  4. HTTP

Answer: B

Question No: 607 – (Topic 5)

A network administrator is responding to a statement of direction made by senior management to implement network protection that will inspect packets as they enter the network. Which of the following technologies would be used?

  1. Packet sniffer

  2. Stateless firewall

  3. Packet filter

  4. Stateful firewall

Answer: D

Question No: 608 – (Topic 5)

Which of the following is MOST commonly implemented for remote access to UNIX systems?

  1. SSL

  2. RSH

  3. SSH

  4. RDP

Answer: C

Question No: 609 – (Topic 5)

A NAS appliance has had a failed NIC replaced. Now the NAS appliance is no longer visible on the network. Which of the following is the MOST likely cause of the problem?

  1. The network cable connecting the NAS to the network switch is bad.

  2. The network port that the appliance is connected to is assigned to the wrong VLAN.

  3. Port security on the Ethernet switch has disabled the port.

  4. Firewall needs to be updated for the new NAS device.

Answer: C

Question No: 610 – (Topic 5)

An administrator wants to restrict traffic to FTP sites regardless of which PC the request comes from. Which of the following would BEST accomplish this?

  1. An IP filtering ACL

  2. A MAC filtering ACL

  3. A port filtering ACL

  4. A class matching ACL

Answer: C

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