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CompTIA JK0-023 Exam Syllabus Topics:

CompTIA Network+ certification Sample Questions:

Question 1

At which layer of the OSI model do MAC addresses operate?

A. Physical
B. Application
C. Data Link
D. Network

Question 2

Which of the following services are affected by closing the default ports of 80 and 21 via ACL on a company router?

A. HTTPS and IMAP traffic
B. VPN and RDP traffic
C. FTP and basic Internet traffic
D. DNS and TELNET traffic

Question 3

A user is unable to connect to a remote computer using RDP. The technician checks the firewall rules and notes that there is no rule that blocks RDP. Which of the following features of the firewall is responsible for blocking RDP?

A. Stateful inspection
B. NAT/PAT
C. Port security
D. Implicit deny

Question 4

Which of the following tools could attempt to detect operating system vulnerabilities?

A. honeynet
B. nslookup
C. nessus
D. netstat

Question 5

Which protocol is represented by the packet capture below? UDP 0.0.0.0:68 -> 255.255.255.255:67

A. DHCP
B. DNS
C. SNMP
D. FTP

Solutions: