Users have reported issues accessing an Internet website. The network technician wants to verify network layer connectivity. Which of the following tools can provide the verification?

A. ping

B. netstat

C. route

D. arp

Which of the following protocols resolves IP addresses to MAC addresses?

A. DNS

B. ARP

C. RARP

D. NTP

Which of the following is a common physical network topology?

A. Cross-over

B. Loopback

C. Star

D. Straight

A company has been given a Class C address to be utilized for all devices. The company has several subnets and the largest subnet has 15 hosts. Which of the following represents the MINIMUM CIDR notation of this subnet mask?

A. /26

B. /27

C. /28

D. /29

An IP address is encapsulated at which of the following layers of the OSI model?

A. Transport

B. Data link

C. Network

D. Application

At which layer of the OSI and TCP/IP model would HTTP and FTP be found?

A. Application

B. Network

C. Session

D. Data Link

Ann, a technician, installs a wireless router in a network closet in a large office. She then configures all workstations in various offices on that floor to use the wireless connection. Maximum connection speed at each workstation is 54 Mbps. Some users complain that their network connection is very slow.

Which of the following is MOST likely the problem?

A. Workstations were configured with the wrong connection speed on the wireless adapter.

B. Users with a slow connection are too far away from the wireless router.

C. Users that cannot connect are configured on the wrong channel.

D. Wireless network SSID is incorrect.

Which of the following technologies can cause interference for 802.11g?

A. RADAR

B. 802.11a

C. IrDA

D. Bluetooth

Which of the following is MOST commonly used with a fiber-optic network backbone?

A. 100BaseFX

B. 100BaseT

C. 100BaseTX

D. 1000BaseCX

A company would like to use the enterprise RADIUS server to authenticate and identify their secure wireless users. Which of the following standards should the company use to facilitate this?

A. Stateful inspection

B. WEP

C. WPA

D. Open with EAP