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Q21. Which TCP/IP model layer does the OSI model layer named 'session' respond to?
A. Application
B. Presentation
C. Internet
D. Transport
Answer: B
Q22. An administrator is troubleshooting wireless connectivity issues at a client’s office and discovers that the machine loses connectivity when the wireless phone is being used. Which of the following WAPS should be installed to help resolve the issue?
A. 802.1 1g
B. 802.1X
C. 802.11n
D. 802.11b
Answer: C
Q23. Which of the following is true about an IP address if the first bit is a zero?
A. The address is a Class A address.
B. The address is a Class B address.
C. The address is a Class C address.
D. The address is a Class D address.
Answer: A
Q24. Which of the following OSI layers is included in the TCP/IP model's Application layer?
A. Data Link
B. Session
C. Transport
D. Network
Answer: B
Q25. A network IPS provides which of the following?
A. The layer 3 protocol on which other protocols like TCP and UDP communicate.
B. Enables the IPSec protocol on internal workstations.
C. Packet-based detection and prevention of network attacks.
D. Single mode IP communication for a fiber line between remote sites.
Answer: C
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Q26. Which of the following utilities would be used to display a NIC's cache of MAC addresses?
A. arp
B. nslookup
C. dig
D. netstat
Answer: A
Q27. A technician wants to use an existing DHCP server for three additional VLANs. Which of the following features needs to be configured to allow for this addition?
A. DHCP server
B. Proxy server
C. Repeater
D. DHCP relay
Answer: D
Q28. Which of the following devices can be installed on individual computers throughout the network?
A. NIPS
B. Network-based firewall
C. VPN concentrator
D. Host-based firewall
Answer: D
Q29. Which of the following defines the range of IP addresses a DHCP server can assign?
A. Scope
B. Lease
C. Reservation
D. Subnet
Answer: A
Q30. Which of the following network optimization methods would be BEST to implement to increase bandwidth for an internal streaming video server?
A. ISDN
B. QoS
C. Upgrade to 10baseT
D. Buffer overflow
Answer: B