rel="nofollow" href="#n190" type="note">190 Which TCP/IP Internet layer protocol is responsible for delivering error messages if communication between two computers fails?
A. ICMP
B. IP
C. TCP
D. UDP
191 Which type of IPv6 address identifies a single node on the network?
A. Multicast
B. Anycast
C. Unicast
D. Localcast
192 You are configuring a wireless 802.11n router for a small network. When setting it up, which security option should you choose?
A. WPA2
B. WPA
C. WEP
D. SSID
193 What type of network covers large geographical areas and often supports thousands of users?
A. LAN
B. WAN
C. PAN
D. MAN
194 Which TCP/IP protocol, developed by Microsoft, allows users to connect to remote computers and run programs on them?
A. RDP
B. SMB
C. CIFS
D. Telnet
195 What port number does the SSH protocol use?
A. 21
B. 22
C. 23
D. 25
196 Which of the following IP addresses is not routable on the Internet?
A. 10.1.1.1
B. 11.1.1.1
C. 12.1.1.1
D. 13.1.1.1
197 Which network connectivity device does not forward broadcast messages, thereby creating multiple broadcast domains?
A. Hub
B. Switch
C. Bridge
D. Router
198 You have a desktop computer that is behaving erratically on the network. The wired connection will often disconnect without warning. Which tool should you use to troubleshoot the network adapter?
A. Multimeter
B. Tone generator and probe
C. Loopback plug
D. Cable tester
199 Your company just expanded and is leasing additional space in an adjacent office building. You need to extend the network to the new building. Fortunately, there is a conduit between the two. You estimate that the cable you need to run will be about 300 meters long. What type of cable should you use?
A. CAT5
B. CAT5e
C. CAT7
D. MMF
200 You want to ensure that client computers can download email from external email servers, regardless of the protocol their email client uses. Which ports do you open on the firewall to enable this? (Choose two.)
A. 23
B. 25
C. 110
D. 143
201 You are installing network cabling in a highly secure facility. The cables need to be immune to electronic eavesdropping. What type of cable should you use?
A. Fiber-optic
B. UTP
C. STP
D. Coaxial
202 Which networking device is capable of reading IP addresses and forwarding packets based on the destination IP address?
A. Hub
B. Switch
C. Bridge
D. Router
203 Which network device is designed to be a security guard, blocking malicious data from entering your network?
A. PoE injector
B. Bridge
C. Firewall
D. Router
204 You are manually configuring TCP/IP hosts on the network. What configuration parameter specifies the address of the router that enables Internet access?
A. Subnet mask
B. DHCP server
C. DNS server
D. Default gateway
205 A senior administrator calls you and tells you that she is working from home and trying to use RDP, but it won’t let her. What port do you need to ensure is open on the firewall to grant her access?
A. 143
B. 443
C. 548
D. 3389
206 Identify the cable connector in the picture.
A. F-connector
B. BNC
C. SC
D. ST
207 What type of network is most commonly associated with Bluetooth devices and covers a small area?
A. LAN
B. WAN
C. PAN
D. MAN
208 Identify the type of cable connectors shown here.
A. F-connector
B. BNC
C. SC
D. ST
209 Which TCP/IP Internet layer protocol is responsible for resolving physical MAC addresses to logical IP addresses?
A. IP
B. ICMP
C. ARP
D. RARP
210 Which of the following IPv6 addresses is equivalent to an address in the 169.254.0.0/16 range in IPv4?
A. 2000::/3
B. FC00::/7
C.