[Sep-2021] Dumps Brief Outline Of The 98-366 Exam - ITPassLeader
98-366 Training & Certification Get Latest Microsoft SQL Server 2008
NEW QUESTION 92
Which two are published IEEE 802.11 wireless transmission standards? (Choose two.)
- A. 802.11n
- B. 802.11g
- C. 802.11k
- D. 802.1 If
- E. 802.11m
Answer: A,B
Explanation:
Explanation/Reference:
The 802.11 family consists of a series of half-duplex over-the-air modulation techniques that use the same basic protocol. 802.11-1997 was the first wireless networking standard in the family, but 802.11b was the first widely accepted one, followed by 802.11a, 802.11g, 802.11n, and 802.11ac.
NEW QUESTION 93
If an 802.llg Internet connection has connectivity problems, what may be the cause?
- A. A cellular phone
- B. A cordless phone
- C. Electromagnetic interference (EMI)
- D. Incandescent lights
Answer: C
Explanation:
Explanation/Reference:
Over the last 10 years 802.11 technology has made remarkable strides -- getting faster, stronger and more scalable. But one problem still haunts Wi-Fi: reliability.
Nothing is more frustrating for network managers than users complaining about flaky Wi-Fi performance, spotty coverage and dropped connections. Dealing with a Wi-Fi environment that you can't see and that is constantly changing is the problem. And radio frequency interference is the culprit.
NEW QUESTION 94
Which DNS record type specifies the host that is the authority for a given domain?
- A. NS
- B. CNAME
- C. MX
- D. SOA
Answer: C
NEW QUESTION 95
One reason to replace an unmanaged switch with a managed switch is to:
- A. Manage the routing tables.
- B. Support multiple VLANS.
- C. Reduce collision domains.
- D. Route between networks,
Answer: B
NEW QUESTION 96
What type of DNS resource record maps an IP address to a fully qualified domain name (FQDN)?
- A. A
- B. CNAME
- C. AAAA
- D. PTR
Answer: C
NEW QUESTION 97
HOTSPOT
For each of the following statements, select Yes if the statement is true. Otherwise, select No. Each correct selection is worth one point.
Hot Area:
Answer:
Explanation:
Explanation/Reference:
* Yes, the TCP/IP four layers corresponds to the OSI model's seven layers.
* No, the TCP/IP application layer corresponds to only the three top OSI Layers.
* Yes, TCP transport (host-to-host in diagram below) and Internet layers corresponds to layer 3 and layer 4 in the OSI model.
Illustration:
NEW QUESTION 98
Which of these cable types transmits data the greatest distance?
- A. Cat5e
- B. Cat6
- C. Multi-mode fiber
- D. Single-mode fiber
Answer: D
NEW QUESTION 99
This question requires that you evaluate the underlined text to determine if it is correct.
The process of replicating a zone file to multiple DNS servers is called zone replication,
Select the correct answer if the underlined text does not make the statement correct. Select 'No change is needed" if the underlined text makes the statement correct.
- A. Zone transfer
- B. No change is needed
- C. Zone synchronization
- D. Start of authority
Answer: A
NEW QUESTION 100
Two companies want to share data by using the Internet.
Which type of network provides the solution?
- A. Intranet
- B. Ethernet
- C. Extranet
- D. Perimeter
Answer: C
NEW QUESTION 101
Which subnet mask is valid?
- A. 255.255.255.228
- B. 255.255.255.245
- C. 255.255.255.240
- D. 255.255.255.164
Answer: C
Explanation:
Explanation/Reference:
These are valid:
NEW QUESTION 102
Which type of network is most vulnerable to intrusion?
- A. Broadband
- B. Leased line
- C. Dial-up
- D. wireless
Answer: D
NEW QUESTION 103
What are two characteristics of a mesh network topology? (Choose two.)
- A. It works best for networks with a large number of nodes.
- B. Every node connects to every other node on the network.
- C. It requires less cabling than either a star or ring topology.
- D. It is fault tolerant because of redundant connections.
Answer: B,D
Explanation:
Explanation/Reference:
In a (full) mesh network topology, each of the network node, computer and other devices, are interconnected with one another. Every node not only sends its own signals but also relays data from other nodes. In fact a true mesh topology is the one where every node is connected to every other node in the network. This type of topology is very expensive as there are many redundant connections, thus it is not mostly used in computer networks. It is commonly used in wireless networks.
Illustration:
NEW QUESTION 104
In local area network (LAN) topologies, the primary media access methods are: (Choose two.)
- A. Kerberos.
- B. token passing.
- C. negotiation.
- D. contention.
Answer: B,D
NEW QUESTION 105
A node within a local area network (LAN) must have a network interface device and a:
- A. table of all network nodes.
- B. network account.
- C. host address.
- D. resource to share.
Answer: C
NEW QUESTION 106
If an 802.llg Internet connection has connectivity problems, what may be the cause?
- A. a cellular phone
- B. Electromagnetic interference (EMI)
- C. Incandescent lights
- D. a cordless phone
Answer: D
NEW QUESTION 107
This question requires that you evaluate the underlined text to determine if it is correct.
Plain old telephone service (POTS), most ISDN lines, and switched T1 lines are all examples of "Message Switching".
Select the correct answer if the underlined text does not make the statement correct. Select 'No change is needed'' if the underlined text makes the statement correct.
- A. Circuit Switching
- B. FDDI Switching
- C. No change is needed
- D. Packet Switching
Answer: A
Explanation:
Explanation/Reference:
* Examples of circuit-switched networks
Public switched telephone network (PSTN)
ISDN B-channel
* You can get a circuit-switched T1, while frames clouds on T1s are usually packet-switched.
NEW QUESTION 108
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