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Question 1.
Connecting a LAN (Local Area Network) to mainframe can be accomplished using a:
A. bridge
B. gateway
C. transceiver
D. firewall
Answer: B
Explanation:
A LAN and a mainframe are two dissimilar networks. A gateway is used to connect two dissimilar networks.
Incorrect Answers:
A:A bridge connects two similar network segments and keeps traffic separated on both sides of the bridge. It does not connect two dissimilar networks.
C:A transceiver allows a networking device to connect to a different type of media than it was designed for. It is not used to connect networks.
D:A firewall protects the LAN from attackers on the Internet. It is not used to connect networks.
Question 2.
Which networking device works at the upper three layers of the OSI (Open Systems Interconnect) and connects networks with different architectures?
A. Router
B. Firewall
C. Modem
D. Gateway
Answer: D
Explanation:
A gateway is used to connect two dissimilar networks. It operates at all the layers of the OSI.
Incorrect Answers:
A: A router operates at the Network Layer of the OSI. The Network Layer is in the middle layers, not the upper layers, of the OSI.
B: A firewall protects the LAN from attackers on the Internet. It is not used to connect networks.
C: A modem provides access to the Internet. It operates at the lower layers of the OSI.
Question 3.
A client noticed that traffic increased steadily over the last few months and performance is beginning to suffer on its TCP/IP (Transmission Control Protocol/Internet Protocol).
Which network can be installed to reduce the impact of network traffic without dividing the LAN (Local Area Network) into separate subnets?
A. Bridge
B. Repeater
C. Router
D. Gateway
Answer: C
Explanation:
Routers make decisions on how to best network data to its destination based on network performance data that it gathers from the network. This will help alleviate traffic on the LAN.
Incorrect Answers:
A: A bridge connects two similar network subnets and keeps traffic separated on both sides of the bridge. However, this will result in sub netting.
B:A repeater amplifies the signals and is used to extend the maximum length of a network segment. It does not alleviate traffic.
D:A gateway is used to connect two dissimilar networks. It does not alleviate traffic on the internal LAN.
Question 4.
What is the default class A subnet mask?
A. 255.0.0.0
B. 255.255.0.0
C. 255.255.255.0
D. 255.255.255.255
Answer: A
Explanation:
A. 255.0.0.0 is a Class A default subnet mask.
Incorrect Answers:
B: 255.255.0.0 is a Class B default subnet mask.
C: 25.255.255.0 is a Class C default subnet mask.
D: 255.255.255.255 is not really a subnet mask, a subnet mask separates a network from a host. In this case just the full address is used.
Question 5.
Which extension header is identified by value 44 in the Next Header field?
A. Fragment extension header
B. Routing extension header
C. Hop-by-bop extension header
D. Destination options extensions header
Answer: A
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Question 1. How many access points will a Cisco 7600 Series Router with six installed Cisco Catalyst 6500 Series Wireless Services Modules support? A. 300 B. 448 C. 664 D. 1800 E. 2400 Answer: D Question 2. Which value is NOT supported by Cisco Spectrum Expert, when checking for RF coverage? A. access point received-signal strength level B. spectrum utilization C. client data rate D. in-band radio frequency interference Answer: C Question 3. Which is NOT part of a typical wireless site survey? A. implementation suggestions B. access point locations C. security requirements D. access point mounting methods Answer: C Question 4. What are two objectives of a pre-site survey walkthrough? (Choose two.) A. identify potential problem areas B. define intended coverage areas C. assess compliance with local building codes D. determine the final location of APs and antennas E. identify sources of RF signal attenuation and RF interference Answer: A, B Question 5. If there is an existing 802.11g WLAN at a site, which service can be provided without conducting a new site survey? A. add a new 802.11a WLAN B. increase the Layer 2 and Layer 3 security of the WLAN C. increase the throughput for the wireless clients D. add new services (such as voice) over the WLAN Answer: B Question 6. Construction of a new automobile parts manufacturing facility has recently been completed. The facility IT manager wants to deploy voice over WLAN. During your initial walkthrough, you observe numerous highly reflective surfaces on the manufacturing equipment and in the building construction itself. What potential problem exists that should be accounted for during your site survey? A. LOS modulation B. multipath distortion C. RF signal absorption D. RF signal attenuation E. Fresnel zone impedance Answer: B Question 7. To which parameter should the access point be set during a site survey? A. transmit only B. diversity C. receive only D. single isolated antenna Answer: B Question 8. Which statement is true when using a Cisco Wireless Mesh Networking Solution? A. The backhaul link isdynamic 1 to 54 Mb/s. B. The backhaul link is typically a fixed value. C. The backhaul link uses DAS antennas. D. The backhaul link uses antenna multiplexing. E. The backhaul link does not rely on fade margin. Answer: B Question 9. What approximates the signal attenuation of a plasterboard wall? A. crowd of people B. office window C. metal door D. brick wall Answer: B Question 10. The AirMagnet passive site survey tool can provide RF coverage data, except for which parameter? A. Signal Strength (4th access point) B. Signal Strength (3rd access point) C. Channel Interference D. Predictive Physical Data Rate Downlink (2nd access point) Answer: A
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