Ch7 (1) Flashcards
(140 cards)
1
Q
. Many organizations today are installing traditional wired Ethernet for desktop users
and install Wi-Fi as ______________.
a. overlay networks
b. Bluetooth
c. cellular networks
d. mobile networks
e. Ethernet networks
A
A
1
Q
How have LAN technologies evolved in recent years?
a) Decrease in data rates
b) Increase in costs
c) Introduction of gigabit Ethernet and high-speed wireless Ethernet
d) Reduction in understanding of LAN design best practices
A
C
2
Q
Why is Wi-Fi considered cheaper than wired Ethernet?
a) Lower equipment costs
b) Higher data rates
c) Reduced installation costs
d) Enhanced security features
A
C
3
Q
What is a key consideration regarding the relationship between Wi-Fi and wired Ethernet?
a) Wi-Fi has lower data rates than wired Ethernet
b) Wired Ethernet uses APs to distribute network capacity
c) Wi-Fi shares its capacity among users on the same AP
d) Wired Ethernet is considerably cheaper than Wi-Fi
A
C
4
Q
How do most organizations typically deploy wired Ethernet and Wi-Fi networks?
a) Wi-Fi as the primary LAN and wired Ethernet as overlay networks
b) Using Wi-Fi for desktop users and wired Ethernet for laptops and mobile devices
c) Installing wired Ethernet for desktop users and using Wi-Fi as overlay networks
d) Implementing both wired Ethernet and Wi-Fi separately for different user groups
A
C
5
Q
What approach have some organizations started experimenting with regarding Wi-Fi?
a) Installing Wi-Fi only for desktop users
b) Moving all users off the wired networks onto Wi-Fi as their primary network
c) Using Wi-Fi as a backup network in case of wired Ethernet failure
d) Removing Wi-Fi entirely from their network infrastructure
A
B
6
Q
According to the text, what is considered the current best practice for LAN design?
a) Using Wi-Fi as the primary LAN
b) Implementing wired Ethernet and Wi-Fi as separate networks
c) Utilizing wired Ethernet for the primary LAN and Wi-Fi as an overlay network
d) Relying solely on wired Ethernet for all network access
A
C
7
Q
Wireless LANs are never connected to a wired network
A
F
8
Q
What type of wiring is commonly used for wired LANs in many organizations today?
a) Category 3 wiring
b) Category 5e wiring
c) Fiber optic wiring
d) Coaxial wiring
A
B. Switched 100Base T or 1000Base-T utilized cat5e(from cat 5)
9
Q
What is a characteristic of Category 5e wiring used for LAN installations?
a) It is expensive and slow.
b) It requires frequent maintenance.
c) It supports high-speed data transmission.
d) It is suitable only for small networks.
A
C. and cheap
10
Q
What was a common practice in the early days of LAN installations regarding network cable placement?
a) Meticulous documentation of cable placement
b) Strategic planning for long-term expansion
c) Installation of cables wherever convenient with little long-term planning
d) Deployment of cables based on precise user requirements
A
C
11
Q
Why is it critical to plan for effective LAN cabling in today’s context?
a) Due to the decreasing demand for LAN usage
b) To ensure easier cable reinstallation in the future
c) To prevent network downtime
d) Because of the increased reliance on LANs and the cost associated with cable installation
A
D
12
Q
When is the cheapest point to install network cable in a building?
a) After the building construction is complete
b) During the renovation of the building
c) During the construction of the building
d) When the building is fully occupied
A
C
13
Q
What factor contributes significantly to the expense of cable installation according to the text?
a) The cost of network hubs and switches
b) The complexity of LAN configuration
c) The cost of paying installers and additional construction
d) The need for frequent cable maintenance
A
C
14
Q
What approach do most buildings under construction today take regarding LAN cabling?
a) They have no separate LAN cable plan.
b) They rely on wireless networks instead of wired LANs.
c) They include LAN cable plans similar to electrical cable plans.
d) They install LAN cables only in selected rooms.
A
C
15
Q
Where are data wiring closets typically located in a building?
a) In each individual room
b) On each floor
c) In the basement
d) In the building’s lobby
A
B
16
Q
What equipment is typically found in a data wiring closet?
a) Desktop computers
b) Network hubs or switches
c) Printers
d) Servers
A
B
17
Q
What is the purpose of running cables from each room on a floor to the wiring closet?
a) To connect all computers within a room
b) To provide access to LAN resources
c) To minimize cable costs
d) To facilitate wireless network connections
A
B
18
Q
When designing user access with wireless Ethernet, what is recommended in terms of the wireless standard, considering the year 2021?
a) 802.11ac
b) 802.11b
c) 802.11ax
d) 802.11g
A
B
19
Q
What is the primary goal of avoiding signal overlap when placing Access Points (APs) in a wireless network?
a) To increase interference and network congestion
b) To ensure seamless roaming for users
c) To improve network security
d) To optimize performance and reduce interference between APs
A
D
20
Q
A site survey is not an important component of a WLAN design
A
F
21
Q
Why is designing the physical layout of a WLAN (Wireless Local Area Network) more challenging than designing a wired LAN?
a) Due to higher costs associated with WLAN equipment
b) Because of the need for specialized training in wireless technologies
c) Because of interference issues
d) Because WLANs require more frequent maintenance
A
C
22
Q
What method is suggested for evaluating the placement of Access Points (APs) in WLAN design?
a) Using a simulation software
b) Conducting a survey among users
c) Employing a temporary AP and laptop
d) Consulting with network administrators
A
C
23
Q
What role does a temporary AP play in WLAN design?
a) Providing permanent network access
b) Evaluating the placement of permanent APs
c) Acting as a backup in case of AP failure
d) Generating network traffic data
A
B
24
How are locations chosen for AP placement in WLAN design?
a) Based on random selection
b) To maximize interference
c) To provide coverage and minimize potential interference
d) Without considering coverage or interference
C
25
Which of the following is not determined by a site survey?
a. feasibility of the desired coverage
b. potential sources of interference
c. the security of the WLAN
d. estimated number of access points needed to provide coverage
e. current locations of the wired network into which the WLAN will connect.
C
26
What is the initial step in designing WLAN coverage?
a) Deploying permanent APs throughout the site
b) Conducting a site survey
c) Estimating signal strength based on theoretical ranges
d) Installing temporary APs randomly
B
27
Which type of construction material typically causes less interference in WLAN signal strength?
a) Concrete block
b) Drywall
c) Metal
d) Brick
B
28
How do the number and type of walls affect WLAN coverage?
a) They have no impact on coverage.
b) They decrease potential interference sources.
c) They influence signal strength, with thicker walls causing more interference.
d) They improve signal propagation.
C
29
What does WLAN performance diminish with, according to the provided information?
a) Increased signal strength
b) Decreased interference
c) More walls between APs and wireless devices
d) Clear line of sight between APs and wireless devices
C
30
What is the coverage area shape of an Access Point (AP) with an omnidirectional antenna?
a) Square
b) Rectangle
c) Circle
d) Triangle
C
31
In typical office environments, at what distance from the AP do real-world tests show a dramatic slowdown in Wi-Fi data rates?
a) 25 feet
b) 50 feet
c) 75 feet
d) 100 fee
B
32
Why do many wireless designers use a radius of 50 feet when planning traditional office environments?
a) To maximize coverage area
b) To minimize interference
c) To ensure high-quality coverage
d) To reduce costs
C
33
How do wireless designers often simplify planning wireless LANs in square-shaped buildings?
a) By using triangular coverage areas
b) By designing using circles
c) By designing using squares
d) By utilizing rectangles
C
34
What approximate size square is equivalent to a 50-foot radius coverage area for an AP?
a) 40 feet
b) 60 feet
c) 70 feet
d) 80 feet
C
35
How do advancements in wireless LAN technology affect the effective range of APs?
a) They increase the range of APs
b) They decrease the range of APs
c) They have no effect on the range of APs
d) They fluctuate the range of APs unpredictably
B
36
How can interference between Access Points (APs) in a building be prevented?
a) By setting each AP to transmit on the same channel
b) By setting each AP to transmit on different channels
c) By turning off all APs except one
d) By increasing the transmit power of all APs
B
37
What challenge is associated with managing WLANs regarding the number of users on each AP?
a) Ensuring all users connect to the same AP
b) Balancing the number of users on each AP
c) Maximizing congestion on all APs
d) Allowing only a few users on each AP
B
38
What is the consequence of devices typically connecting to the AP with the strongest signal?
a) It reduces network congestion on all APs.
b) It ensures optimal network performance on all APs.
c) It potentially causes congestion on some APs while others remain underutilized.
d) It prevents users from connecting to any AP.
C
39
How do standard APs behave in terms of communication with each other?
a) They communicate with each other constantly to optimize network performance.
b) They only respond to devices that request access to them.
c) They autonomously select channels to avoid interference.
d) They transmit signals indiscriminately, causing interference.
B
40
What is an essential consideration in multi-story WLAN design to minimize interference from APs on different floors?
a) Horizontal mapping only
b) Vertical mapping only
c) Both horizontal and vertical mapping
d) Interference is not a concern in multi-story WLAN design
C
41
What potential complication arises from thicker floors in multi-story WLAN design?
a) Reduced interference between APs
b) Simplified design process
c) Impeded vertical signal propagation
d) Increased signal strength
C
42
_______ are wired into a Wi-Fi Controller. They report what devices are attached to
them and how busy they are to the controller, which balances traffic across the APs it
manages.
a. Managed APs
b. Managed routers
c. SAN
d. Managed Wi-Fi hub
e. Wireless router
A
43
What action does the Wi-Fi Controller take if a laptop connects to a very busy AP?
a) It increases the signal strength of the busy AP.
b) It instructs the laptop to disconnect from the network.
c) It denies access to the laptop on the busy AP.
d) It decreases the traffic load on other APs.
C
44
What happens when a laptop is denied access to a busy AP by the Wi-Fi Controller?
a) The laptop continues to attempt to connect to the busy AP repeatedly.
b) The Wi-Fi Controller disconnects the laptop from the network entirely.
c) The laptop automatically connects to the next available AP.
d) The Wi-Fi Controller assigns the laptop to a less busy AP.
C
45
What distinguishes the primary network from the guest network on most WLAN Access Points (APs)?
A) The primary network requires no password for access.
B) The guest network provides higher security than the primary network.
C) The primary network is secured with a password for regular users.
D) The guest network has the same encryption standards as the primary network.
C
46
Which encryption standard is commonly used to secure the primary network on WLAN Access Points (APs)?
A) WEP (Wired Equivalent Privacy)
B) WPA2 (Wi-Fi Protected Access 2)
C) No encryption is used for the primary network.
D) MAC address filtering is used for encryption
B
47
What is the purpose of having a separate guest network on WLAN Access Points (APs)?
A) To provide unrestricted access to all users
B) To prioritize network traffic for regular users
C) To allow temporary access without compromising the security of the primary network
D) To encrypt data transmissions for regular users
C
48
How does the security level of the guest network compare to the primary network on WLAN Access Points (APs)?
A) The guest network provides stronger security measures.
B) The guest network offers no security measures.
C) The guest network offers limited security compared to the primary network.
D) The guest network has the same level of security as the primary network.
C
49
How does the guest network on WLAN Access Points (APs) handle access during periods of high usage?
A) It restricts access to only regular users.
B) It prioritizes traffic from guest users over traffic from regular users.
C) It limits the bandwidth available to guest users to maintain performance for regular users.
D) It provides unrestricted access to all users, regardless of network load.
C
50
The ___________ is where the organization housing its primary servers.
a. MDF
b. guest house
c. SOHO network
d. data center
e. load balancer
D
51
What is typically housed within a data center of an organization?
A) Only the primary servers
B) The primary servers, campus backbone switches, and enterprise edge
C) Only the campus backbone switches
D) Only the enterprise edge
B
52
The ________ acts as a router at the front of the server farm.
a. load router
b. MDF
c. Layer 2 switch
d. front-end loader
e. load balancer
E
53
What is the primary function of a load balancer in a server farm?
A) To provide IP addresses to servers
B) To route requests to specific servers based on a formula
C) To act as a firewall for incoming requests
D) To manage internal network traffic within the server farm
B
54
How does a load balancer direct incoming requests to servers?
A) By assigning a unique IP address to each server
B) By forwarding requests to all servers simultaneously
C) By using a round-robin formula or more complex load-balancing algorithms
D) By broadcasting requests to all servers in the server farm
C
55
What happens if a server crashes in a server farm with a load balancer?
A) The load balancer assigns a new IP address to the crashed server.
B) The load balancer redistributes incoming requests to the remaining servers.
C) The load balancer stops sending requests to the crashed server and continues operating with the remaining servers.
D) The load balancer forwards all requests to a backup server until the crashed server is restored.
C
56
How does load balancing facilitate the addition or removal of servers in a server farm?
A) By automatically configuring new servers without user intervention
B) By broadcasting changes to all servers in the server farm
C) By redirecting all requests to a single server during the transition period
D) By allowing servers to be added or removed without affecting users, with configuration changes made on the load balancer
D
57
What role does the load balancer play in server scalability?
A) It limits the number of requests that can be handled by each server.
B) It ensures that each server receives an equal number of requests.
C) It facilitates the addition of servers to handle increased traffic without disrupting users.
D) It restricts access to servers based on user permissions
C
58
Which component of the server farm is responsible for monitoring the workload of individual servers?
A) Load balancer
B) Router
C) Switch
D) Server management software
A
59
How are requests directed within a server farm when using a load balancer?
A) Requests are sent directly to individual servers.
B) All requests are directed to the load balancer's IP address.
C) Requests are distributed among servers based on their IP addresses.
D) Requests are routed randomly across all servers.
B
60
What is the role of the load balancer when a request hits it?
A) The load balancer processes the request internally.
B) The load balancer forwards the request to multiple servers simultaneously.
C) The load balancer forwards the request to a specific server using its IP address.
D) The load balancer blocks the request until it receives further instructions
C
61
____ is the process of creating several logically separate servers on the same physical
computer.
a. Server virtualization
b. Server optimization
c. Server proliferation
d. Server platforming
e. Server redundancy
A
62
How does server virtualization differ from server farms and load balancing?
A) Server virtualization consolidates multiple servers onto a single physical computer.
B) Server virtualization prioritizes certain types of requests over others.
C) Server virtualization distributes requests evenly among multiple physical servers.
D) Server virtualization involves creating multiple physical servers within a network.
A
63
How does server virtualization help companies save money?
A) By increasing the number of physical servers they buy and operate
B) By eliminating the need for network monitoring and management
C) By reducing the number of physical servers they need to buy and operate
D) By investing in specialized virtualization software like VMware
C
64
What role does virtualization software like VMware play in server virtualization?
A) It enables firms to easily configure and run separate virtual servers.
B) It increases the operating costs associated with server virtualization.
C) It sits between the hardware and operating systems, allowing multiple operating systems on the same physical computer.
D) It provides native support for virtualization in certain operating systems.
C
65
What is a characteristic of virtual servers running on the same physical computer?
A) They share the same IP address.
B) They are completely isolated from each other.
C) If one crashes, it affects the others.
D) They appear separate to the network.
B
66
How does Native Virtualization Support differ from specialized virtualization software?
A) Native support is built-in to operating systems, while specialized software is not.
B) Specialized software is more cost-effective than native support.
C) Native support is used exclusively in small-scale networks.
D) Specialized software provides more advanced features than native support.
A
67
When is specialized virtualization software used?
A) When native support is available in operating systems.
B) When firms want to increase the number of physical servers they operate.
C) When there is no need for virtualization.
D) When native support is not available in operating systems
D
68
A ___ has a set of high-speed storage devices and servers that are networked together
using a very high-speed network.
a. wide area network
b. local area network
c. storage area network
d. storage server
e. local area storage WAN
C
69
How does a storage area network (SAN) differ from a local area network (LAN)?
A) A SAN is used solely for data storage, while a LAN is used for general network communication.
B) A SAN has lower speed network connections compared to a LAN.
C) A SAN is primarily used for internet access, while a LAN is used for data storage.
D) A SAN is limited to a single location, while a LAN can span multiple locations.
A
70
How does a client access data stored in a storage area network (SAN)?
A) By directly connecting to the storage devices
B) By sending requests to servers on the LAN, which retrieve the data from the SAN
C) By accessing the SAN's IP address
D) By connecting to the SAN using a web browser
B
71
What role do servers play in a storage area network (SAN)?
A) They directly store and manage data on the SAN.
B) They act as intermediaries between clients and the storage devices on the SAN.
C) They provide internet access to clients connected to the SAN.
D) They handle network security protocols for the SAN.
B
72
In what scenario does a storage area network (SAN) play a critical role?
A) When servers need to be replaced
B) When there is a need for increased internet speed
C) When the amount of data to be stored exceeds the practical limits of servers
D) When network security needs to be enhanced
C
73
What types of devices can be part of a storage area network (SAN)?
A) Only database servers
B) Only network-attached disk arrays
C) Database servers, network-attached disk arrays, and network-attached storage (NAS) devices
D) Only general-purpose computers
C
74
What is the primary function of a network-attached storage (NAS) device?
A) To process database queries
B) To serve as a fast file server and respond to requests for files and data
C) To run a server operating system like Windows or Linux
D) To provide internet access to clients
B
75
In what role can a NAS device function when attached to a local area network (LAN)?
A) As a database server
B) As a network-attached disk array
C) As a fast file server
D) As a router
C
76
Typically used between networking devices that are near each other (e.g., in a rack or
data center).
a. Category 1 cable
b. Category 2 cable
c. Category 5e cable
d. Category 6 cable
e. Category 7 cable
E
77
. Category 8 have a maximum range of 15 meters, which means they are typically used
between networking devices that are near each other (e.g., in a rack or data center).
F
78
The maximum range of Category 7 cables is 15 meters.
T
79
The _____ contains the servers that are designed to serve data to customers and
suppliers.
a. e-commerce edge
b. SAN
c. LAN
d. domain controller
e. bottleneck
A
80
What equipment is typically found in both the e-commerce edge and the data center?
a) Desktop computers
b) Load balancers
c) Printers
d) Telephones
B
81
How is the e-commerce edge connected to the Internet?
a) Through low-speed dial-up connections
b) Via high-speed circuits
c) It is not connected to the Internet
d) Through satellite connections
B
82
What distinguishes the security requirements of the e-commerce edge from those of the data center?
a) The size of the equipment
b) The number of employees accessing it
c) Its external-facing role
d) The type of data stored on it
C
83
Which network does the e-commerce edge integrate with?
a) Corporate intranet
b) Supplier network
c) Campus backbone
d) Public Wi-Fi network
C
84
What is the main difference between the e-commerce edge and the data center?
a) Location
b) Equipment size
c) Security requirements
d) Type of data stored
C
85
What does SOHO stand for in networking?
a) Secure Office Home Organization
b) Small Office/Home Office
c) Systematic Office Hardware Operations
d) Shared Office Hosting Options
B
86
Which of the following devices is typically used in a SOHO environment?
a) Mainframe server
b) Wireless router
c) Blade server
d) Network-attached storage (NAS)
B
87
______ provides Ethernet over the existing electrical power wires in your house at
rates up to 1 Gbps.
a. Managed APs
b. SAN
c. Powerline networking
d. Wireless LANs
e. Powertrain LANs
C
88
Why is wired Ethernet becoming less common in SOHO environments?
a) It offers slower internet speeds compared to wireless.
b) It is more expensive to install than wireless.
c) Manufacturers are no longer producing new wired Ethernet products.
d) It requires less maintenance than wireless.
B
89
Which devices are typically used in a SOHO environment?
A) Modem, router, switch, and Access Point (AP)
B) Fax machine, printer, and copier
C) Server, mainframe, and tape storage
D) Landline telephone, answering machine, and pager
A
90
What is an alternative to using separate modem, router, switch, and AP in a SOHO setup?
A) Using a single device that contains all functionalities
B) Eliminating the use of a modem
C) Using only a switch and a router
D) Connecting devices directly to the internet without any network hardware
A
91
. Wired Ethernet is becoming a _______________ technology for small SOHO
devices, meaning that manufacturers are no longer creating new products. .
a. host
b. legacy
c. caching
d. hub
e. peak
B
92
What is the main advantage of using Powerline networking in a large house?
A) It uses existing electrical wiring to transmit data.
B) It requires new wiring installations.
C) It is cheaper than using wireless technologies.
D) It supports data transmission up to 10 Gbps.
A
93
What is the maximum data rate Powerline networking can provide?
A) Up to 100 Mbps
B) Up to 500 Mbps
C) Up to 1 Gbps
D) Up to 10 Gbps
C
94
Which type of cable is commonly used for traditional wired Ethernet signals?
a) Cat 5e
b) Cat 6
c) Coaxial
d) Optical fiberv
A
95
How are multiple rooms connected using powerline networking?
a) Via Wi-Fi extenders
b) Through ethernet cables
c) By using Bluetooth hubs
d) By connecting powerline adapters in each room
D
96
What do powerline adapters utilize to transmit Ethernet signals within a building?
a) Wi-Fi signals
b) Copper cables
c) Electrical power wires
d) Fiber optic cables
C
97
What does throughput measure in the context of LAN performance?
a) The speed of data transmission
b) The total amount of user data transmitted in a given period of time
c) The efficiency of network protocols
d) The latency between devices
B
98
What does response time measure in the context of LAN performance?
a) The time it takes to establish a connection
b) The speed of data transmission
c) How long it takes to get a response from the destination
d) The efficiency of network hardware
C
99
What is a bottleneck in the context of LAN performance improvement?
a) A point where data transmission speeds are optimal
b) A point where data transmission is blocked entirely
c) A point where server or circuit capacity cannot handle the demand
d) A point where network protocols are inefficient
C
100
Where can bottlenecks occur in a network infrastructure?
a) Only at endpoints
b) Only at network switches
c) At network servers and network circuits
d) Only within the LAN, not the WAN
C
101
How can bottlenecks be addressed to improve LAN performance?
a) By increasing network complexity
b) By adding more endpoints
c) By identifying and eliminating congestion points
d) By reducing the number of connected devices
C
102
What action should be taken to identify bottlenecks in a LAN?
a) Increase network complexity
b) Check server utilization during periods of poor performance
c) Decrease server capacity
d) Ignore network circuit capacity
B
103
How can bottlenecks at the server be recognized?
a) When there's high server utilization (e.g., 80-100%)
b) When server utilization is low
c) When network switches are overloaded
d) When there are no incoming requests
A
104
What defines a bottleneck in network circuits?
a) Low server utilization
b) High server utilization
c) Sufficient capacity to transmit requests
d) Insufficient capacity to transmit all requests to the server
D,A
105
What is the suggested focus for addressing bottlenecks in a LAN?
a) Increasing network complexity
b) Reducing server capacity
c) Reducing client network usage
d) Ignoring server utilization
C. focus on increasing server and circuit capacity
reducing client network usage
106
How can server performance be improved through software enhancements?
a) By upgrading network cables
b) By adjusting settings in the Network Operating System (NOS)
c) By replacing server hardware
d) By increasing power supply capacity
B
107
What aspect of the Network Operating System (NOS) can impact network performance?
a) Number of connected devices
b) Speed of the NOS
c) Amount of server RAM
d) Size of the hard drive
B
108
Which of the following software settings can be adjusted to enhance server performance?
a) Network cable length
b) Amount of memory used for disk cache
c) Number of physical server processors
d) Server rack temperature
B
109
What role does disk cache play in improving server performance?
a) It decreases disk storage capacity
b) It increases disk access time
c) It reduces the time to access files and applications
d) It increases the number of simultaneously open files
C. by storing in the disk cache
110
Which software adjustment can help in handling a higher number of simultaneous file accesses?
a) Increasing the amount of buffer space
b) Decreasing the memory allocated for disk cache
c) Reducing the speed of the NOS
d) Closing background applications
A
111
When a LAN server is overloaded, what hardware improvement options should be considered?
a) Upgrading the network cables
b) Installing additional routers
c) Adding one or more additional servers
d) Increasing the length of the Ethernet cables
C
112
How can server performance be enhanced through hardware upgrades?
a) By reducing the server's memory capacity
b) By slowing down the server's CPU
c) By upgrading the server's CPU with a faster one
d) By decreasing the number and speed of hard disks
C
113
What hardware improvement is recommended to improve server performance specifically related to disk reads?
a) Increasing the number of CPUs
b) Adding more network switches
c) Upgrading the server's memory
d) Increasing the number and speed of hard disks
D
114
What does RAID stand for in the context of hard drives?
a) Redundant Array of Inexpensive Data
b) Random Access Information Disk
c) Redundant Array of Inexpensive Disks
d) Reliable Array of Independent Drives
C
115
Why are faster hard disks considered essential for faster network performance?
a) They decrease the number of connected devices
b) They reduce the need for additional servers
c) Disk reads are the slowest task the server needs to perform
d) They improve the speed of network cables
C
116
What is the purpose of considering a Redundant Array of Inexpensive Disks (RAID) setup?
a) To reduce server memory usage
b) To eliminate the need for network switches
c) To increase the number of CPUs in the server
d) To improve performance and increase reliability
D
117
How does RAID help improve performance and increase reliability?
a) By reducing the server's CPU usage
b) By decreasing the server's memory capacity
c) By building redundancy into the hard drives
d) By slowing down disk read operations
C
118
What is meant by "fault tolerance" in the context of RAID?
a) The server's ability to handle network faults
b) The server's ability to tolerate hard drive failures without data loss
c) The server's ability to tolerate CPU failures without performance impact
d) The server's ability to recover from memory errors automatically
B
119
What strategy can be used in RAID to improve performance and reliability?
a) Replacing small drives with a single large drive
b) Adding more RAM to the server
c) Replacing one large drive with many small ones
d) Increasing the number of network switches
C
120
Which of the following is not a potential bottleneck for LAN performance?
a. number and speed of hard disks in the server
b. amount of memory in the server
c. speed of server’s CPU
d. network interface card
e. all of the answers are potential bottlenecks for LAN performance
E
121
If your LAN server is overloaded, which of the following should you not consider (to
solve the server problem)?
a. adding one or more additional servers
b. upgrading the server’s CPU with a faster CPU
c. increasing the amount of memory of the server
d. increasing the number and speed of hard disks in the server
e. replacing the cable with fiber optic cable
E
122
Which of the following can provide fault tolerance for the storage space on a server?
a. RAID
b. SCSI
c. IDE
d. USB
e. EIDE
a
123
What action can be taken to increase the volume of simultaneous messages the LAN circuit can transmit?
a) Decreasing the number of connected devices
b) Upgrading to a bigger circuit (faster circuit)
c) Adding more servers to the network
d) Removing network cables
b
124
Which upgrade example enhances circuit capacity in wired networks?
a) Transitioning from 802.11n to 802.11ac
b) Upgrading from 100Base-T to 1000Base-T
c) Adding more wireless access points
d) Upgrading from 802.11ax to 802.11ad
b
125
What benefit does transitioning from 802.11n to 802.11ac or 802.11ax provide in wireless networks?
a) Improved security
b) Increased range
c) Enhanced capacity
d) Reduced power consumption
C
126
How can the segment to the server be upgraded to improve circuit capacity?
a) By decreasing the number of NICs
b) By upgrading from 100Base-T to 1000Base-T
c) By reducing the server's memory capacity
d) By removing network switches
B
127
. To increase the volume of simultaneous messages the LAN circuit can transmit from
network clients to the server(s), you can:
a. increase the CPU of the server
b. upgrade to a bigger circuit
c. increase the number of hard disks on the server
d. increase the amount of disk capacity of the server
e. increase the amount of memory of the server
B
128
How can overall network capacity be enhanced by adding more circuits?
a) By reducing the number of connected devices
b) By upgrading network cables
c) By installing additional circuits between busy network segments
d) By removing network switches
C
129
In which network segments is it particularly beneficial to create two or more separate high-speed circuits?
a) Between client devices and servers
b) Between network switches and routers
c) Between the core backbone and the data center
d) Between wireless access points
C
130
What is the purpose of creating separate high-speed circuits between busy network segments?
a) To decrease network complexity
b) To reduce the number of network devices
c) To enhance overall network capacity
d) To minimize the need for network maintenance
C
131
In which network components is full duplex configuration particularly beneficial?
a) Wireless access points
b) End-user devices
c) Network backbones and servers
d) Network switches
C
132
What is one way to increase the number of segments to the server in a wired network?
a) By reducing the number of switches
b) By consolidating all devices onto a single switch
c) By adding more switches and distributing devices across them
d) By decreasing the number of network cables
C
133
What action should be taken if wireless LAN performance is poorer than expected?
a) Adding more access points
b) Installing additional network switches
c) Checking for sources of interference near access points and computers
d) Increasing the length of network cables
C
134
In wireless networks, how can the number of segments to the server be increased effectively?
a) By reducing the number of access points
b) By using the same channel for all access points
c) By adding more access points operating on different channels
d) By decreasing the coverage area of existing access points
C
135
. Which of the following is not an effective way to reduce LAN network demand:
a. move files to client computers
b. use disk caching on the client machines
c. find an application that places a large demand on the network and run it a time
when the network is lightly loaded
d. add hidden nodes
e. shift the users’ routines
D
136
What approach can be taken to reduce network demand by moving files to client computers?
a) Increasing the number of network switches
b) Storing heavily used software packages directly on client computers
c) Adding more access points to the wireless network
d) Upgrading the server's CPU
B
137
What potential challenge may arise from storing files directly on client computers?
a) Improved software version management
b) Enhanced network security
c) Difficulties in software version upgrades
d) Reduced need for network switches
C
138
What action can help encourage demand shifting from wired to wireless networks?
a) Installing additional network switches
b) Adding more wired Ethernet jacks in areas frequented by wireless users
c) Increasing the number of access points in the wireless network
d) Encouraging wired users to switch to wireless
D
139
How can network users be encouraged to reduce usage during peak times?
a) By increasing network bandwidth
b) By delaying network-intensive jobs to off-peak times
c) By providing additional network switches
d) By installing more access points
D
