CERTguide 70-244 Study Guide

What is 70-244 all about?

Supporting and Maintaining a Microsoft Windows NT Server 4.0 Network exam

This exam tests your ability to support and maintain networks that use Microsoft Windows NT Server 4.0 as a primary operating system. The expected environments have the following characteristics:

n          From 200 to more than 26,000 users are supported.

n          From one to more than 50 physical locations are included.

n          Typical network services and applications include file and print, database, messaging, proxy server or firewall, dial-in server, desktop management, and Web hosting.

n          Connectivity needs include connecting branch offices and individual users at remote locations to the corporate network and connecting corporate networks to the Internet.

n          Operating systems on client computers might include Windows® 2000 Professional, Windows NT Workstation 4.0, Windows 98, and third-party operating systems.

n          Client computers are being incrementally upgraded to Windows 2000 Professional.

When you pass this exam, you achieve Microsoft Certified Professional status. You also earn credit toward the following certifications:

n          Elective credit toward Microsoft Certified Systems Engineer on Microsoft Windows 2000 certification

n          Elective credit toward Microsoft Certified Systems Engineer on Microsoft Windows NT 4.0 certification

n          Elective credit toward Microsoft Certified Systems Administrator on Microsoft Windows 2000 certification

Enterprise Models

Workgroup

n          no centralized management

n          limited security

n          appropriate for networks with very small numbers of users.

Windows NT Server Directory Services advantages

n          single network logon ID

n          centralized account administration

n          management of network account and security information

n          integration with BackOffice applications

Single domain model

n          contains all accounts and resources in one domain

Single master domain model

n          has all user accounts contained in one domain

n          has resources distributed among one or more domains that trust the user domain.

Multiple master domain

n          has several domains that contain user accounts

n          each user account domain trusts every other user account domain

n          has one or more resource domains that trusts all of the user account domains

Complete trust model

n          has domains that contain both users and resources

n          every domain trusts every other domain.

Trusts

n          enable secure links between domains

n          allow users in one domain to access resources in another domain

n          you use User Manager for Domains to establish a one-way trust relationship with another domain.

n          to implement a two-way trust relationship, you must establish two one-way trusts with another domain.

Protocols

TCP/IP

n          default protocol for NT Server

n          DHCP, WINS, and RIP are provided with NT Server to complement TCP/IP

n          use DHCP to simplify the distribution and management of TCP/IP addresses

n          use WINS to:

u        resolve NetBIOS names to IP addresses
u        reduce NetBIOS names query broadcasts
u        allow NetBIOS name resolution across routers

NetBEUI

n          fast

n          efficient

n          easy to configure

n          good for small workgroup

n          not routable

NWLink

n          for coexistence with Netware servers

n          for communication with Netware clients

File systems

FAT

n          should be used on drives smaller than 400 MB

n          should be used when security is not a concern

n          should be used when compatibility with DOS / Win95 is needed

NTFS

n          provides both directory and file level security

n          should be used on drives larger than 400 MB

n          a must have for fault tolerance setup

RAID

n          Windows NT Server supports disk mirroring (RAID Level 1) and disk striping with parity (RAID Level 5)

n          Disk striping (RAID Level 0) does not provide fault tolerant

n          Striping does increase performance.

Server requirements

n          NT Server is sized for an organization by evaluating requirements for:

u        memory
u        number of processors
u        disk space
u        network connectivity

n          The number of domain controllers needed depends on:

u        the number of users
u        the need for redundancy
u        the need to provide local directory services

Domain controllers have a minimum memory requirement of:

2.5 times of user accounts (1 KB/user) + computer accounts (.5 KB/computer) + group accounts (0.5 KB/group)

Client connectivity

Licensing

n          2 licensing modes: Per Server licensing and Per Seat licensing.

n          A server license is required for each server

n          A CAL is required for each client computer that accesses a server.

Client types:

n          Network Client 3.0 for MS-DOS and Windows

n          Microsoft LAN Manager 2.2c Client

n          Microsoft LAN Manager 2.2c Client for OS/2

n          Windows 95 operating system client software

Services for clients:

n          Services for Macintosh - allows Microsoft clients and Apple Macintosh clients to share resources.

n          Services for Netware - allows Microsoft clients to access Netware resources.

Client networking software must be configured with the same protocols as the Server.

Resource access

n          permissions are available on the files and directories of NTFS partitions.

n          permissions are available with directory shares

n          you use share permissions for shares on FAT partitions

n          with NTFS, you can compress files that reside on individual directories – totally transparent to user

n          user account can be granted permissions on resources across the enterprise

n          local and global groups can ease management of permissions.

n          recommended approach: add users to global groups as needed, and then assign local groups appropriate permissions to resources, then finally add the appropriate global groups to the local group with the permissions for a given resource

n          for administration across a trust relationship, recommended approach: add a global group from the trusted domain to the local Administrators group in the trusting domain.

User profile

n          Local user profile - contains all user-definable settings controlling a user's desktop environment locally

n          Roaming user profiles - provide users with the same desktop environment from any NT computer on a network (NT only)

n          Roaming mandatory user profile – almost the same as Roaming profile, but cannot be changed by users. The profile is not “personal”

n          Roaming personal user profile - updated whenever a user makes a change. The profile is really personal.

System Policy

n          domain system policy settings are stored in a file named Ntconfig.pol in the Net logon share of the PDC.

n          to implement a domain system policy on computers running Windows 95, use the Windows 95 System Policy Editor to create the system policy and have it saved to a file named Config.pol in the Net logon share of the PDC.

n          Ntconfig.pol and Config.pol are stored on the PDC in the Net logon share.

n          you may use System Policy Editor to directly edit portions of the registry, as long as you know what you are doing

n          for all domain controllers to receive copies of the Ntconfig.pol and Config.pol files, replication must be enabled between them

n          domain synchronization is complex and bandwidth consuming

n          synchronization over WAN links should be controlled via ReplicationGovernor

Net Logon

n          directory: systemroot\System32\Repl\Import\Scripts

n          responsible for:

u        Logon validation
u        Synchronization of BDCs with PDCs
u        Pass-through authentication

Management tools

n          Windows NT Server Tools:

u        available for Windows NT Workstation
u        also available for Windows 95 computers.

n          Windows NT Workstation Tools:

u        DHCP Manager
u        Policy Editor
u        RAS Administrator
u        Server Manager
u        User Manager for Domains
u        WINS Manager

n          Windows 95 Tools

u        Event Viewer
u        Server Manager
u        User Manager for Domains
u        extensions to Windows 95 Explorer for editing of printer's security properties and NTFS file objects, as well as the administration of file and print services for NetWare

Network monitoring

Network Monitor:

n          Software-based

n          performs traffic analysis:

u        Capture frames from the network.
u        Display and filter captured frames
u        Edit captured frames and retransmit
u        Capture frames from remote computer.

n          simple version is included with Windows NT Server 4.0

n          full version

u        comes with Microsoft Systems Management Server
u        can be installed on:
l          Windows for Workgroups
l          Windows 95/98
l          Windows NT Workstation
l          Windows NT Server

Traffic analysis – client to server:

n          Browser traffic - generated by a client when:

u        registering itself as a possible provider of network resources
u        retrieving a list of backup browsers
u        retrieving a list of servers on the network
u        retrieving a list of resources on the server

n          DNS traffic - generated by TCP/IP hosts

u        during TCP/IP host name resolution.

n          Intranet browsing - generated by the Internet Explorer when

u        downloading pages from a web site.

Traffic analysis – server to server:

n          Account synchronization traffic includes

u        BDCs finding the PDC
u        establishing a session and secure channel
u        verifying the directory database
u        updating the directory database

n          Trust relationship traffic includes

u        establishing a trust
u        importing trusted accounts
u        authentication

n          Server browser traffic includes

u        browser announcements
u        browser elections
u        browse list updates

n          WINS replication traffic includes

u        establishing the replication relationship
u        verifying the WINS database
u        updating the WINS database

n          Directory replication traffic includes

u        announcements
u        directory replication session establishment
u        directory verification
u        directory update

n          DNS server to server traffic includes

u        DNS query
u        DNS response
u        establishing a TCP session
u        replication of the database
u        session termination

IIS

Components:

n          Inetinfo provides shared facilities for the thread pool, cache, logging, and SNMP services

n          Thread pool contains a group of threads used within the process for a specific operation

n          Cache stores data for file handles, account information, and log file data

n          Logging stores information about which users access a site
SNMP is for monitoring a Web server.

WWW property

n          configure different areas of your Web site, folder, and file.

n          includes the following nine component property sheets:

u        Web Site
u        Operators
u        Performance
u        ISAPI Filters
u        Home Directory
u        Documents
u        Directory Security
u        HTTP Headers
u        Custom Errors

Virtual directory

n          folder not physically contained within the Internet Information Server service home folder

n          can be created and managed with

u        Internet Information Server administration tool
u        Microsoft FrontPage

n          two types of virtual directories: local and remote.

n          local virtual directory:

u        located on a disk contained within the same computer

n          remote virtual directory:

u        located on a different computer
u        must be within the same domain

Virtual servers

n          allow you to host multiple Web and FTP sites on a single computer

n          use the Host Headers capability of HTTP 1.1 to associate multiple host names with a single IP address.

n          can be created with Internet Information Server administration tool

SMTP service

n          To configure, open Internet Service Manager and use the SMTP Site, Operators, Messages, Delivery, and Directory Security property sheets.

n          provides site access protection

n          use transaction logging to monitor message transactions

NNTP service

n          To configure, open the Internet Service Manager and use the News Site, Security Accounts, NNTP Settings, Home Directory, Directory Security, and Groups property sheets.

n          allows you to edit and delete newsgroups

n          you may restrict access by:

u        setting authentication mode
u        limiting access by IP address
u        establishing moderated newsgroups to control content

Index Server

n          allows you to index and search the content of documents stored in the IIS site

n          can index:

u        multilingual documents
u        documents of different file types
u        documents stored on multiple Web servers

n          can update an index automatically whenever the files associated with the index are changed.

n          can be started and stopped via Control Panel

n          manual administration of indexes can be done using .ida files

n          most errors can b detected automatically

n          make use of the built-in security features of NT and IIS

Transaction Server

n          ACID - Atomicity, Consistency, Isolation, and Durability.

u        Atomicity—Either all changes happen or none happen.
u        Consistency—Actions taken as a group do not violate any integrity constraints. Isolation—For concurrent actions, one is either executed before or after the other, but not both.
u        Durability—Changes survive failures of all sorts.

n          Transaction Server can be configured using the Microsoft Transaction Server Explorer snap-in for Microsoft Management Console.

n          Point-and-click wizards:

u        Package wizard - creates packages.
u        Component wizard- adds components to package.
u        Add Server wizard - exports package to remote server
u        Add Clients wizard - adds client systems to distributed solution.
u        Configure wizard - sets the transactional properties of deployed components
u        Security wizard - configures security attributes of components and packages.

n          GUI utilities:

u        Transaction lists - lists properties of running transactions.
u        Transaction statistics - tracks transaction performance.
u        Trace messages - views trace messages.

Performance management

Tools

n          Performance Monitor for monitoring performance via counters

n          Event Viewer for viewing logs

Relevant Bandwidth Counters in Performance Monitor:

n          Bytes Received/sec

n          Bytes Sent/sec

n          Bytes Total/sec

n          Connection Attempts/sec

n          Current Anonymous Users

n          Current Connections

n          Current NonAnonymous Users

n          Maximum Connections

n          Maximum NonAnonymous Users

n          Total Anonymous Users

n          Total Connection Attempts

n          Total NonAnonymous Users

Relevant ISAPI and CGI Counters in Performance Monitor:

n          Bytes Received/sec

n          Bytes Sent/sec

n          Bytes Total/sec

n          Current CGI Requests

n          Current ISAPI Extension Requests

n          Maximum CGI Requests

n          Maximum Connections

n          Maximum ISAPI Extension Requests

n          Total CGI Requests

n          Total Files Sent

n          Total Files Transferred

n          Total Get Requests

n          Total ISAPI Extension Requests

n          Total Other Request Methods

n          Total Post Requests

Relevant ASP Counters in Performance Monitor:

n          Memory Allocated

n          Request Execution Time

n          Request Wait Time

n          Requests Executing

n          Requests Failed Total

n          Requests Queued

n          Requests Succeeded

n          Requests Total

n          Requests/Sec

Relevant Internet Information Server Cache Counters in Performance Monitor:

n          Cache Flushes

n          Cache Hits %

n          Cache Misses

n          Cache Size

n          Cache Used

n          Cached File Handles

n          Folder Listings

n          Objects

Reference Books

MCSE Supporting and Maintaining NT Server 4 Exam Cram (Exam: 70-244) -- J. Peter Bruzzese, et al; Paperback

http://www.amazon.com/exec/obidos/ASIN/1588801802/qid=1020681890/sr=8-4/ref=sr_8_67_4/104-3798385-9811168

MCSE Supporting and Maintaining a Windows NT Server 4.0 Network Study Guide (Exam 70-244) -- Inc. Syngress Media (Editor), Duncan Anderson; Hardcover

http://www.amazon.com/exec/obidos/ASIN/0072191619/qid=1020681890/sr=8-5/ref=sr_8_67_5/104-3798385-9811168 

MCSE Training Guide (70-244): Supporting and Maintaining a Windows NT Server 4 Network -- Roberta Bragg, et al; Hardcover

http://www.amazon.com/exec/obidos/ASIN/0735711577/qid=1020681890/sr=8-6/ref=sr_8_67_6/104-3798385-9811168

This study guide is developed by Michael Yu Chak Tin. He can be reached at Michael@examreview.net.






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