Networking I (Chapter 10 & 11)

A text file containing a list of commands is called which of the following?

None of these choices

The OS component that schedules processes to run is the _____________.

None of these choices

Which of the following refers to a Windows server with Active Directory installed?

None of these choices

What would an Asynchronous Transfer Mode (ATM) network be best suited for?

carrying voice data and time-sensitive information

The plain old telephone service is a good example of what kind of WAN technology?

circuit switched

If you store mainly large files on a disk, should you use a smaller cluster size.

False

If you store mainly large files on a disk, you should use a smaller cluster size because there would be less read/write operations.

False

Switched virtual circuits create pathways that exist even when not in use.

False

What are the most common packet-switched networks? (Choose all that apply.)

1) ATM 2) MPLS 3) X.25 4) Frame relay

T-Carrier lines only require a CSU/DSU on the customer's side of the connection.

False

Which of the following types of file systems support file and folder permissions? (Choose all that apply.)

1) EXT3 2 NTFS

Which of these file systems includes file and folder permissions? (Choose all that apply.)

1) Ext3 2) NTFS

Which of the following is a typical situation in which leased lines should be considered? (Choose all that apply.)

1) Fast upstream and downstream communications are needed. 2) 24/7 access is required.

Which of the following technologies employs packet-switching? (Choose all that apply.)

1) Frame relay 2) X.25

Which of the following is a component of the PPP protocol? (Choose all that apply.)

1) LCP 2) NCP

Which of the following is a critical service provided by the OS? (Choose all that apply.)

1) Memory management 2) File system

Which of the following virtualization products are used for bare-metal virtualization? (Choose all that apply.)

1) Microsoft Hyper-V 2) Citrix XenServer 3) VMware ESX Server

Which of the following is a VPN protocol supported by Windows? (Choose all that apply.)

1) PPTP 2) SSTP 3) L2TP

Which of the following is a common WAN connection method? (Choose all that apply.)

1) Packet-switched 2) VPN over the Internet 3) Circuit-switched 4) Leased line

Which physical topology does SONET readily support? (Choose all that apply.)

1) Point-to-multipoint 2) Ring 3) Point-to-point

Which of the following is a device used to make WAN connections? (Choose all that apply.)

1) Router 2) CSU/DSU 3) Modem

Which of the following is an objective of a file system? (Choose all that apply.)

1) Secure access to files. 2) Organize files hierarchically. 3) Organize space on a drive. 4) Provide an indexing system for fast retrieval.

In which of the following areas does a WAN differ from an internetwork? (Choose all that apply.)

1) WAN technologies provide the same function in a network as LAN technologies, such as Ethernet. 2) WANs use service providers for the network connection. 3) WANs use serial communication technologies that can span miles.

Which of the following technologies offers permanent virtual circuits? (Choose all that apply.)

1) X.25 2) Frame relay 3) ATM

What are the two most common ways of accessing a network resource? (Choose two.)

1) entering a UNC path 2) mapping a drive

Which of the following is a fault tolerant feature provided by a server OS? (Choose all that apply.)

1) hot-swappable devices 2) server cluster 3) RAID

T1 carrier lines operate at exactly _____ Mpbs.

1.544

Which of the following is something X.25 does NOT offer?

144 Mbps maximum throughput

A cluster is composed of which of the following?

512-byte sectors

ATM cells are _____ bytes in size.

53

The Link Control Protocol (LCP) is used by PPP for the encapsulation of higher layer protocols such as IP and provides services such as dynamic IP addressing.

False

The platform as a service (PaaS) category of cloud computing allows a company to use storage or entire virtual servers as its need requires it.

False

Which of the following protocols is used for Windows VPN connections?

All of these choices

Select the true statement regarding analog and digital signals.

Analog signals vary over time continually and can be represented by a sine wave, while digital signals are binary 1s and 0s using voltage levels.

Virtualization is designed for testing and development purposes only.

False

When a disk is formatted, it is impossible to recover the data that was on the disk.

False

X.25 provides a high level of bandwidth, but limited error control.

False

If you want your virtual machine to have direct access to the physical network, which virtual network option should you configure?

Bridged

Which of the following is the equipment at the customer site that's the responsibility of the customer?

CPE

For what purpose is a CSU/DSU used?

Creates a digital connection between a LAN device and the WAN link

Which term best describes the place in a WAN connection where the customer's responsibility ends and the provider's responsibility begins?

Demarcation point

By using a technique called phase shift modulation, V.92 digitizes analog signals, which reduces the noise introduced in the signal and allows for more bits per second when transferring data.

False

When a user enters his username and password to log on to a machine, he is invoking the process of ____________.

authentication

If you want one server to take over the processing of a server that has failed, what should you configure?

Failover cluster

A channel service unit/data service unit (CSU/DSU) creates a dedicated point-to-point connection from the customer's LAN through the provider's network and to the destination network.

False

A member server is a computer that has a Windows server OS installed as well as the Active Directory Service Role.

False

A router is considered to be a CSU/DSU.

False

A storage cluster is two or more servers configured to operate as a single unit for load-balancing purposes.

False

A virtual machine is the component that creates the hardware environment of a hypervisor It allows several hypervisors to run at the same time and acts as a manager for them.

False

Bare-metal virtualization is best for desktop virtualization.

False

The two main types of virtualization are _____ and bare-metal.

Hosted

A(n) _____ is the component that creates the hardware environment of a virtual machine. It allows several virtual machines to run at the same time and acts as a manager for them.

Hypervisor

Which of the following statements regarding PPP's Network Control Protocol (NCP) is false?

It is responsible for the termination of a link when a call or connection has ended.

What directory service protocol used in Linux systems is also supported by Windows?

LDAP

What is the native file-sharing protocol in Linux?

NFS

_____ creates connection-oriented virtual circuits with labels assigned to each packet. This label is used to make packet forwarding decisions, making it unnecessary for routers along the way to view the contents of the packet.

MPLS

An OS's capability to run more than one application or process at the same time is referred to which of the following?

Multitasking

Which of the following combines several communication streams into a single faster communication stream?

Multiplexing

Google's AppEngine is an example of hosted _____ cloud computing technology.

PaaS

_____ is the process of granting or denying an authenticated user's access to network resources.

authentication

A digital signal consists of binary 1s and 0s, which may be sent electronically by varying voltages in copper media. A digital signal can also be represented as pulses of light on fiber optic media.

True

A hot-swappable device is a device that can be removed from the computer while the computer is still running. This allows a faulty device to be replaced without shutting down the server.

True

A process is a program that's loaded into memory and run by the CPU.

True

You have been asked to install a VPN remote access solution using Windows Server. What do you need to install?

Routing and Remote Access Service (RRAS)

Which of the following e-mail protocols is used for sending e-mail?

SMTP

Which of the following is best described as a program loaded into memory that has no user interface but communicates with other programs?

Service

_____ lines make extensive use of multiplexing to achieve their speeds, but they require a CSU/DSU at the end of each link for the multiplexing process.

T-carrier

What is the signaling method used to allocate time slots for each channel in a T-carrier line called?

Time Division Multiplexing (TDM)

A channel service unit/data service unit (CSU/DSU) is a device creates a digital connection between a LAN device and the WAN link from the service provider.

True

In Windows, you can start the Task Manager by simply right-clicking the taskbar and choosing Start Task Manager

True

Link Control Protocol is responsible for the setup of a PPP connection, as well as the termination of a connection when it has ended.

True

Multiplexing allows for multiple communication streams to travel over the same cable segment simultaneously.

True

Multiprotocol Label Switching (MPLS) supports both IPv4 and IPv6, as well as other network layer protocols.

True

One critical difference between a client OS and a server OS is the addition of directory services on some server OSs.

True

Packet switched WANs use virtual circuits to ensure that packets are delivered reliably and at the agreed-on bandwidth level.

True

The DCE is typically a modem or CSU/DSU, especially when dealing with DSL and cable technologies in home environments.

True

The minimum memory requirement for Windows Server is 512 MB of RAM.

True

WANs can span distances measured in miles compared with typical LAN technologies that span distances measured in hundreds of meters.

True

When the operating system is not busy, the kernel schedules the System Idle process with the CPU time. Therefore, a high value for the system idle process would mean that the CPU is not busy.

True

Windows Server 2008 R2 and later can be installed only on a 64-bit system.

True

X.25 networks commonly offer both switched virtual circuits and permanent virtual circuits, but PVCs aren't always available.

True

Which of the following best describes a storage area network?

Uses high-speed networking technologies to give servers fast access to large amounts of disk storage

_____ achieves 56 Kbps by skipping the modulation of analog data to digital data as it's received from the Telco.

V.92 modem

Part of SONET's flexibility comes from its ability to be arranged in several different physical topologies. Which of the following is NOT a possible SONET topology?

fault tolerant bus

You are testing out a new DHCP server and want to make sure that it does not interfere with your current network. What option would you use to configure your network adapter using VMware workstation?

host-only

Which cloud computing category refers to the use of software hosted on a service provider's network, and is usually subscription based?

hosted applications

The CPE must be able to send data in the correct format onto the connection that makes up the ___________ and receives data coming from that connection.

local loop

To map a shared folder from the command prompt, enter the _____ command followed by a space, the drive letter, and a colon. Add another space and then enter the UNC path of the share to be mapped.

net use

In ___________ multitasking, either the user or the OS can terminate a process that is monopolizing the CPU's time.

pre-emptive

Which of the following is not a function typically provided by the centralized management of a server-based network?

protocol analysis

You're the network administrator for a large bean-bag chair company. You are presenting to your supervisor several reasons to make use of cloud computing for handling data processing. Which answer would be a valid benefit of using cloud computing?

reduced physical plant costs

In the hierarchical filing method, the top of the hierarchy is called the _____ of the file system.

root directory

The available storage space on a disk drive is broken into chunks. What are the chunks called?

sectors

What is a partial copy of a VM that is used to restore it to a previous state?

snapshot

If a portion of a _____ line is used for one purpose and a different portion for another purpose, the line has been fractionalized.

t-carrier

What method does the CPU use to divide its computing cycles between more than one process?

time slicing