Deck 7: Physical and Network Topology Security

Question 1

In decentralized situations, servers are managed by server administrators from each department or division, so that management of a server is customized to the specific needs of that department or division.

Answer 1

True

Question 2

Twisted-pair cabling is more flexible than coax cable and therefore better for running through walls and around corners.

Answer 2

True

Question 3

Coaxial cable (typically called coax) comes in two varieties, thick and thin.

Answer 3

True

Question 4

A disadvantage of a bus network is that it requires more cable than does the traditional star.

Question 5

It is more difficult with a(n) star topology than with the traditional bus topology for someone to create an unauthorized tap into the network, because they need access to the central hub or switch.

Question 6

An advantage of fiber-optic cable is that its high bandwidth and low attenuation (signal loss) enable it to sustain transmissions over long distances.

Question 7

The bus topology is easier to manage than the ring topology because the equipment used to build the bus makes it easier to locate a defective node or cable problem.

Question 8

The physical side of the network is how the signal is transferred from point to point along the cable.

Question 9

UTP cable is the most frequently used network cable because it is relatively inexpensive and easy to install.

Question 10

In a bus topology, a terminator is connected to each end of the bus cable segment.

Question 11

When working with twisted-pair cabling, solid shielding is used for indoor wiring, and corrugated shielding is used for outside or underground wiring.

Question 12

NetWare 6.x enables you to configure a screen saver at the console by using the SSAVER command.

Question 13

Newer high-speed ring technologies employ three loops for redundant data transmission.

Question 14

Twisted-pair cable is used mainly in older LANs and in LANs that exist in areas with strong sources of signal interference.

Question 15

A(n) intermediate cross-connect is a wiring closet that houses the main-level cables and cables to main networking and telecommunications devices.

Question 16

A(n) trunk is a high-capacity communications medium that joins networks and central network devices on the same floor in a building, on different floors, and across long distances.

Question 17

In Red Hat Linux 9.x you configure screen effects, which are similar to a screen saver, and you can associate a password with the screen effects.

Question 18

A bus network segment must be within the IEEE length specifications to ensure that packets arrive in the expected time.

Question 19

In Netware 6.x after you use the SECURE CONSOLE command, you cannot disable it without rebooting the server.

Question 20

The star topology is the oldest communications design, with roots in telephone switching systems.

Question 21

Which command in Netware 6.x allows you to configure a screen saver at the console?

A) SCRSAVER
B) SSAVER
C) SCRNSVR
D) SCREENSAVER

Question 22

What location can NLMs be loaded from when the SECURE CONSOLE command is run?

A) sys:system
B) DOS partition
C) Floppy disk
D) CD

Question 23

Which type of network device links network segments and forwards and filters frames between segments?

A) Hub
B) Router
C) Bridge
D) Switch

Question 24

Which of the following fire suppression chemicals is considered to be an environmental concern?

A) Soda acid
B) Halon
C) Carbon dioxide
D) Baking soda

Question 25

In Netware 6.x, how do you gain access back into the system after the screen saver starts and the screen is locked?

A) Console 1
B) Server Console Authentication dialog box
C) Command line authentication
D) Ctrl+Alt+Del key sequence

Question 26

Which type of network device provides immediate battery power to equipment during a power failure or brownout?

A) Uninterruptible battery source
B) Redundant battery source
C) Uninterruptible power supplies
D) Redundant power supplies

Question 27

A _____ lock consists of a thick cable covered by vinyl, with one end permanently attached to a table or an immobile object.

A) hardware
B) cable
C) cipher
D) both a and b
E) a, b, and c

Question 28

Which type of network device connects networks having the same or different access methods and media, and forwards packets and frames to networks?

A) Switch
B) Router
C) Bridge
D) Firewall

Question 29

What kind of security is related to the purpose and location of a workstation?

A) End User
B) Desktop
C) Workstation
D) System

Question 30

Which type of network device divides a communications medium into multiple channels so that several nodes can communicate at the same time?

A) Repeater
B) Multiplexer
C) Switch
D) De-multiplexer

Question 31

Which type of network device connects two or more cable segments and retransmits any incoming signal to all other segments?

A) Hub
B) Bridge
C) Repeater
D) Switch

Question 32

Which type of network device is used to link together network segments in a physical star fashion?

A) Hub
B) Switch
C) Router
D) Bridge

Question 33

What type of interference is caused by magnetic force fields that are generated by electric devices such as factory machinery, fans, elevator motors, and air-conditioning units?

A) EMS
B) EMI
C) RFI
D) EMF

Question 34

Which NetWare 6.x SCRSAVER command parameter enables the screen saver to work after it has been disabled?

A) Activate
B) Enable
C) Re-enable
D) Start

Question 35

Which of the following operating systems can use screen savers to protect the desktop?

A) Windows
B) Linux
C) Mac OS X
D) All of the above

Question 36

Which NetWare 6.x SCRSAVER command parameter starts the screen saver immediately and requires a user account and password to go back into the console?

A) Delay
B) Auto Clear Delay
C) Activate
D) Enable

Question 37

Which type of network device provides remote communications, such as multiple modems and connections to telecommunications lines?

A) Routers
B) Firewalls
C) Switches
D) Access servers

Question 38

Which NetWare 6.x SCRSAVER command parameter entered in seconds, determines the amount of time that the keyboard is inactive before the screen saver starts?

A) Auto Clear Delay
B) Wait
C) Timer
D) Delay

Question 39

Which operating system uses XScreenSaver to lock the screen?

A) Windows ME
B) Red Hat Linux 9.x
C) Mac OS X
D) Netware 6.x

Question 40

Which NetWare 6.x SCRSAVER command parameter must be used at the time SCRSAVER is loaded and prevents screen locking?

A) Disable Lock
B) Enable Lock
C) No Password
D) Disable

Question 41

Does horizontal wiring typically encompass multiple floors in a building, fanning out to various rooms and office areas?

Question 42

What type of topology is displayed in the figure above?

A) Star
B) Bus
C) Ring
D) Bus-star

Question 43

Which organization plays a leading role in developing standards for network cabling and data transmissions?

A) Comptia
B) ISO
C) EIA/TIA
D) IEEE

Question 44

Which type of cable is the most difficult to tap into?

A) Twisted pair
B) Thick coax
C) Fiber optic
D) Thin coax

Question 45

When installing a cable plant, should you use single-mode fiber-optic cable for long runs, such as long distances between buildings?

Question 46

Is UTP cable the most frequently used network cable because it is relatively inexpensive and easy to install?

Question 47

Is it easy for someone to place unauthorized taps into fiber-optic cable?

Question 48

Which type of topology consists of cable running from one computer to the next?

A) Star
B) Bus
C) Ring
D) Hybrid

Question 49

The _____ is the most popular topology.

A) bus
B) star
C) hybrid
D) ring

Question 50

What device does each computer connect to in a ring layout?

A) Chassis switch
B) Hub
C) Repeater
D) MAU

Question 51

What is one of the disadvantages of a ring network?

A) It is more difficult to manage than a bus topology
B) It is more expensive to implement than a bus topology
C) It is not suited for transmitting signals over long distances on a LAN
D) It does not handle high-volume network traffic as well as the traditional bus topology

Question 52

Which EIA/TIA standard specifies various wiring closet configurations?

A) 232
B) 442
C) 489
D) 569

Question 53

What type of fiber-optic cabling should be installed between floors in a proper cable plant?

A) Single-mode
B) Multimode
C) Single-strand
D) Multi-strand

Question 54

How are the optical light pulses generated in fiber-optic cabling?

A) Laser
B) LED
C) Photometer
D) Both a and b
E) a, b, and c

Question 55

Is twisted-pair cable more resistant to EMI and RFI than thin coax cable?

Question 56

What type of topology is displayed in the figure above?

A) Star
B) Bus
C) Ring
D) Bus-star

Question 57

Which type of communication media is usually used to connect computers that demand high-speed LAN and WAN access?

A) Coax cable
B) UTP cable
C) Fiber-optic cable
D) Wireless technologies

Question 58

What does C represent in the figure above?

A) Aluminum sleeve
B) Conductor insulation
C) Glass cladding
D) Optical fiber

Question 59

What is the biggest disadvantage of shielded twisted-pair cabling?

A) It is large in diameter and has limited bending capability
B) It is relatively susceptible to EMI and RFI
C) It is fragile and requires expertise to install
D) It needs to have proper grounding

Question 60

What is the biggest disadvantage of the star topology?

A) It is more difficult to expand than a traditional bus network
B) It is more difficult to manage than a traditional bus network
C) It has a single point of failure
D) It is easier to tap into than a traditional bus network

Question 61

What are the three elements to following a structured design when designing a network?

Question 62

When you run SECURE CONSOLE in NetWare, can NLMs be loaded if they are not already in a protected system directory sys:system or C:\nwserver?

Question 63

In Red Hat Linux 9.x, is SNMP typically installed during the initial installation of the operating system on TCP/IP servers?

Question 64

______________________________ is caused by electrical devices that emit radio waves at the same frequency used by network signal transmissions.

Question 65

____________________ is the transmission capacity of a communications medium, which is typically measured in bits per second (for data communications) or in hertz (for data voice and video communications), and is determined by the maximum minus the minimum transmission capacity.

Question 66

Does physical security further involve the location of computers and network devices in a building, along with the construction quality of that building?

Question 67

____________________ is a protocol in the TCP/IP suite that enables computers and network equipment to gather standardized data about network activity.

Question 68

Is a centralized layout like a star with workstations as its points?

Question 69

_________________________ refers to installing cable that fans out in a horizontal star fashion from one or more centralized hubs or switches, which are located in telecommunications rooms or wiring closets.

Question 70

In a(n) ____________________ server security model, the physical security used for servers may vary widely from server to server and department to department.

Question 71

____________________ should be secured with locks, supplied with conditioned and properly grounded power, and be environmentally controlled to offer a constant temperature range and protection from excessive moisture.

Question 72

A(n) ____________________ is a device that secures data from being accessed outside a network and prevents data from leaving the network through an inside source.

Question 73

A(n) ____________________ is the physical layout of cable and the logical path followed by network packets sent on the cable.

Question 74

What security concepts should be taught to workstation users when training them about physical security?

Question 75

What are the three general categories of physical security?

Question 76

Is a VLAN a physical network that consists of subnetworks of workgroups established through intelligent software on switches and routers, and is it independent of the logical network topology?

Question 77

What are two potential problems that can exist with VLANs?

Question 78

In a(n) ____________________ server farm configuration, the servers are in one area in which they are easy to maintain, such as at central chassis switch locations.

Question 79

Using ____________________ cable for vertical wiring not only enables you to scale the speed of your backbone for high-speed communications, it also has the advantage that it is not affected by EMI or RFI.

Question 80

Structured networks enable the network administrator to do what seven tasks?