Exam 241-250 Flashcards
Which of the following ports should be allowed through a firewall to allow DNS resolution to occur to an outside DNS
server?
A. 20
B. 53
C. 80
D. 3389
B. 53
Which of the following mediums is circuit switched?
A. PSTN
B. ATM
C. Frame relay
D. MPLS
A. PSTN
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).
A. 20 B. 80 C. 143 D. 443 E. 8080
B. 80
D. 443
A technician has replaced the Internet gateway router, and now no users can reach the Internet. The technician can ping
the router Ethernet port but not the ISP’s router IP address. Which of the following is the MOST likely problem?
A. Faulty crossover cable
B. DNS server is down
C. Switching loop
D. Outside interface shutdown
D. Outside interface shutdown
Which of the following cables will MOST likely be used to connect to a satellite dish?
A. RG-6
B. CAT5e
C. Fiber
D. CAT6
A. RG-6
Which of the following protocols would Kurt, a technician, use to synchronize local date and time of a client workstation
to that of a server?
A. RTP
B. NTP
C. TFTP
D. ARP
B. NTP
Lisa, a technician, is asked to not allow FTP traffic on a network. Which of the following ports should be blocked on the
firewall to achieve this?
A. 21
B. 22
C. 23
D. 25
A. 21
Which of the following is the MOST economical way for Sandy, a technician, to implement 10- Gigabit Ethernet at a
datacenter?
A. 10GBaseLR
B. 10GBaseSR
C. 10GBaseX
D. 10GBaseT
D. 10GBaseT
Which of the following is the network topology in which computers connect in a closed circle? A. Bus B. Mesh C. Ring D. Star
C. Ring
Which of the following cable types have a rated MAXIMUM bandwidth Mbps?
A. CAT3
B. CAT5
C. CAT5e
D. CAT6
B. CAT5
