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Chapter 4: Survey of Network Operating Systems

Lesson 1: Introduction to Network Operating Systems

Lesson Checkup

  1. In a networking environment, ______________ provide resources to the network, and client network software makes these resources available to the client computer.

    2. servers

  2. In __________________ multitasking, the operating system can take control of the processor without the task's cooperation. In ______________________ multitasking, the�task itself decides when to give up the processor.

    3. preemptive, nonpreemptive

  3. A request to use a remote resource is forwarded out onto the network by the _________________.

    4. redirector

  4. Most NOSs allow different users to gain different levels of access to ________________ ___________________.

    5. network resources

  5. All group members have the same ________________ as have been assigned to the group as a whole.

    6. privileges

  6. It is not uncommon to find, in a single network, both a network interoperability _____________ on the server and network ___________ applications at each computer.

    7. service, client

Lesson 2: Novell Operating Systems

Lesson Checkup

  1. A NetWare network consists of ___________ and ___________ applications.

    2. client, server

  2. NetWare is often the NOS of choice in _________ computer operating system environments.

    3. mixed

  3. With NetWare client software installed, computers can view NetWare resources as if they were ___________ to the client.

    4. native

  4. NetWare __________ ______________ can support up to 256 printers.

    5. print services

  5. NetWare servers provide services to computers on a Windows NT network through the Windows NT server's ________________ service.

    6. gateway

Lesson 3: Microsoft Network Operating Systems

Lesson Checkup

  1. In Windows NT networking, a ______________ is a collection of computers that share a common database and security policy.

    2. domain

  2. Each Windows NT domain has one ______________ ______________ _________________.

    3. primary domain controller

  3. Windows NT can provide directory- and file-level sharing on an _______ disk partition, but only directory-level sharing on a 16-bit _______ disk partition.

    4. NTFS, FAT

  4. To set sharing on a Windows NT computer you must have _______________ privileges.

    5. administrator

  5. NWLink is a network protocol that helps Windows NT and NetWare ____________________.

    6. interoperate

  6. On a Windows NT network, any client or server can function as a print _______________.

    7. server

Lesson4: Other Network Operating Systems

Lesson Checkup

  1. AppleTalk zones are _______________ ____________ of networks and network resources.

    2. logical groups

  2. In a UNIX network, personal computers can be used as _________ terminals.

    3. dumb

  3. Banyan Vines can communicate with Windows NT using the ____________ protocol.

    4. TCP/IP

  4. Windows for Workgroups, Windows 95 and 98, MacOS, and OS/2 Warp incorporate __________ - ______ - __________ network operating systems.

    5. peer-to-peer

Lesson 5: Network Operating Systems in Multivendor Environments

Lesson Checkup

  1. In a multivendor environment, it is necessary to find a ________________ _______________ in which all computers can communicate.

    2. common language

  2. A redirector will ______________ your request to the appropriate destination.

    3. forward

  3. Each redirector handles only the ______________ sent in the language or protocol that it can understand.

    4. packets

  4. Apple computers are brought into a Windows NT environment by means of communication ______________ that are installed on the server.

    5. services

Exercise 4.1: Case Study Problem

The owner wants everyone on this network to be able to exchange files, use both printers, and have access to company e-mail through an Internet service provider. She has made it clear that she does not want a network that requires high administrative overhead.

There might not be a completely satisfactory solution in this situation, in which case it is important to satisfy the most important criteria. Because the�owner is unwilling to consider a network that requires significant administrative overhead, a peer-to-peer network seems appropriate.

By enabling the peer-to-peer networking that resides in the company's existing computers and by connecting the computers and resources with 100Mb UTP cabling and TCP/IP, an adequate degree of interoperability is achieved. Using TCP/IP also allows both printers to be connected to the network itself, using network port hardware, rather than to individual computers.

Enabling sharing on all computers makes their resources available to the others. Enabling Apple services on the Windows NT computer creates a path between the graphic designer, who uses the Apple NOS, and the others, who use two of the Windows network operating systems.

Chapter Review

  1. A multitasking operating system can run as many tasks simultaneously as there are ____________________.

    2. processors

  2. The network operating system can take control of the processor without the task's cooperation in a multitasking operating system that uses _________________ multitasking.

    3. preemptive

  3. The process of forwarding requests is carried out by a __________________, which is also commonly referred to as a "shell" or a "requester."

    4. redirector

  4. Redirector activity originates in the _____________ computer when the user issues a request for a network resource or service.

    5. client

  5. Redirectors can send requests to either computers or ___________________.

    6. peripherals

  6. In the past, network operating systems were ____________________ that were loaded on top of a stand-alone operating system.

    7. applications

  7. Novell's NetWare operating system is a _________________-based network.

    8. server

  8. An advantage of using NetWare is that it works well in a ________________ environment.

    9. multivendor

  9. A Windows NT computer will not communicate with a NetWare network. True False

    10. False

  10. Banyan Vines is an NOS that runs on top of another operating system.

    11. True False

    True

  11. Your client is a small business, planning to install a small network for the office, which includes five computers, running Windows 95, and two printers. Security is not an issue because all employees work on the same projects. Would you recommend upgrading to Windows NT?

    12. No

  12. Will a Windows 95 or 98 workstation always work on a NetWare network?

    13. No