Friday 22 August 2014

BASIC INTERVIEW QUESTIONS




       1)  What’s the difference between local, global and universal groups?
 Domain local groups assign access permissions to global/domaingroups for local domain resources. Global groups provide access to resources in other trusted domains. Universal groups grant access to resources in all trusted domains.

     2)    I am trying to create a new universal user group. Why can’t I?
 Universal groups are allowed only in native-mode Windows Server 2003 environments. Native mode requires that all domain controllers be promoted to Windows Server 2003 Active Directory.

3)          How can you restrict running certain applications on a machine?
§  Via group policy, security settings for the group, then Software Restriction Policies.

4)          What is loop back address and its purpose?
§  127.0.0.1. The Loop back address is used to check the drivers of the TCP/IP    
§  Protocol.

5)       What are private IP addresses?
The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets (local networks):
10.0.0.1 - 10.255.255.254
172.16.0.1 - 172.31.255.254
192.168.0.1 - 192.168.255.254


6)        How many name resolution for windows?
There are Two (1) NetBIOS (2) DNS

7)         What is Routing?
 Routing is the process of transferring packets from one network to other network. Windows 2003 can be configured as router.

8)            What hidden shares exist on Windows Server 2003 installation?
Admin$, Drive$, IPC$, print$.

9)  How is user account security established in Windows Server 2003?
When an account is created, it is given a unique access number known as a security identifier (SID). Every group to which the user belongs has an associated SID. The user and related group SIDs together form the user account’s security token, which determines access levels to objects throughout the system and network. SIDs from the security token are mapped to the access control list (ACL) of any object the user attempts to access.

10)            If I delete a user and then create a new account with the same username    And password, would the SID and permissions stay the same? 
No. If you delete a user account and attempt to recreate it with the same user name and password, the SID will be different. 

11)          What remote access options does Windows Server 2003 support?
§  Dial-in, VPN, dial-in with callback.

12)           Where are the settings for all the users stored on a given machine?
Document and Settings\All Users

13)         What is presentation layer responsible for in the OSI model?
The presentation layer establishes the data format prior to passing it along to the network application’s interface. TCP/IP networks perform this task at the application layer.

14)       Does Windows Server 2003 support IPv6?
Yes.

15)  What’s the difference between the basic disk and dynamic disk?
o   The basic type contains partitions, extended partitions, logical drivers, and an assortment of static volumes; the dynamic type does not use partitions but dynamically manages volumes and provides advanced storage options

16) What’s the difference between local, global and universal groups? Domain local groups assign access permissions to global domain groups for local domain resources. Global groups provide access to resources in other trusted domains. Universal groups grant access to resources in all trusted domains.

17) I am trying to create a new universal user group. Why can’t I? Universal groups are allowed only in native-mode Windows Server 2003 environments. Native mode requires that all domain controllers be promoted to Windows Server 2003 Active Directory.


 18)  What’s the difference between Software Installer and Windows Installer?       
 The former has fewer privileges and will probably require user intervention. Plus, it uses .zap files.

   19)What’s the major difference between FAT and NTFS on a local machine?             
     FAT and FAT32 provide no security over locally logged-on users. Only native NTFS provides extensive permission control on both remote and local files.

    20) How do FAT and NTFS differ in approach to user shares?                     They don’t, both have support for sharing.

21)  How does Windows 2003 Server try to prevent a middle-man attack on encrypted line? Time stamp is attached to the initial client request, encrypted with the shared key.

22)What is presentation layer responsible for in the OSI model?                             The presentation layer establishes the data format prior to passing it along to the network application’s interface. TCP/IP networks perform this task at the application layer.
  
23)  Does Windows Server 2003 support IPv6?                                                           Yes, run ipv6.exe from command line to disable it.

24)Can Windows Server 2003 function as a bridge?                                                Yes, and it’s a new feature for the 2003 product. You can combine several networks and devices connected via several adapters by enabling IP routing.\

   25) What’s the role of http.sys in IIS?                                                                            It is the point of contact for all incoming HTTP requests. It listens for requests and queues them until they are all processed, no more queues are available, or the Web server is shut down.

26)  Where’s ASP cache located on IIS 6.0?                                                                            On disk, as opposed to memory, as it used to be in IIS 5.

     27) What is socket pooling?                                                                                            Non-blocking socket usage, introduced in IIS 6.0. More than one application can use a given socket.

28)Difference between FAT32 and NTFS

FAT32 NTFS
§  Supported by win9x, 2000, 2003, xp supported by nt,2000,2003,xp
§  Remote security Local security
§  NA compression and encryption
§  NA Hot Fixing
§  NA Shadow copy and Disk quota

29)  Difference between Basic disk and dynamic disk
Basic Disk Dynamic disk
partition are created volumes are created
can be converted to dynamic cannot be converted to basic
grouping of disk not allowed grouping of disk are allowed
No data redandancy data redandancy uising RAID 1/5
partition table is at start partition table is at end

     30) Can we convert FAT32 to NTFS? how ?
you can convert FAT32 partition to NTFS using convert.exe command.
Eg . convert <drive:> /fs:ntfs

31)Difference between Windows 2000 Server and 2003 Server
Windows 2000 Windows 2003

  • No Shadow copy Shadow Copy feature
  • No RPC over HTTP RPC over HTTP
  • 32 bit 32 bit and 64 bit
  • no Domain rename featues domain rename feature
  • Terminal Service Remote desktop and assistance
  • ERD ASR
  • less command line tool more command line tools
  • No Stub DNS Stub DNS
  • IIS 5 IIS 6
 
      32) Difference between Windows 2000 Prof and Windows XP prof
Windows 2000 Prof Windows XP prof 
  • ERD ASR
  • Terminal Service Remote Desktop and assistance
  • IE 5 IE 6
  • No Firewall Basic firewall
  • NO Alternate IP configuration
  • NO System restore
  • NO Driver rollback feature
33)  Difference between Windows XP home and Windows XP prof
Windows XP home Windows XP prof

  • no Remote desktop Yes
  • NO Offline folders
  • 1 processor 2 processor
  • workgroup memeber Workgroup and domain member
  • NO Encyption
  • NO GPO GPO
  • NO Roaming profile
  • no ASR ASR

34)Difference between Windows XP and Windows 98
      35) Windows XP Windows 98
  • a) Remote desktop NO
  • b) GPO NO
  • c) 2 processor 1 processor
  • d) NTLM & Kerberos NTLM authentication
  • e) Encyption NO
  • f) Disk Quota NO
  • g) FAT, FAT32 and NTFS FAT and FAT32
  • h) IE 5 IE 4
36)  Users are of two types

a) Local User : Local users are used in workgroup environment and can logon to local
     machine.
b) Global Users : Global users are used in domain environment and can be created on
     DC and can login from any machine in a domain.

37)   Explain types of group ?
    Groups are divided into two categories
a) Security group : groups to which rights and permission can be assigned
b) Distribution group : groups used for assigning common properties like email address,
     Etc. They are used by mailing software like exchange  server.

38)  3. Explain scope of group
         the scope of groups are divided into 3 categories
     Local Group : Local groups are used in workgroup environment
     Domain Local Group : groups which cannot cross domain boundary are called as l             
     ocal group. they can access resources of local domain only.
     Global group : groups which can cross domain boundary and can access resources of
     local as well of other domains. Global groups can contain gobal users and global     
      groups
          from same domain only.
          Universal Group : groups which can cross domain boundary and can access resources  
          of
local as well of other domains. Universal group can contains global users, universal
groups from same and other domain too.


39)  Can we convert Universal group to Global group
Which tool is used to backup data or system state ?
: NTbackup or any other third party software like veritas, etc.

        40) what does system state backup includes ?
 Sysvol, ADS database file, COM+ components, Registry and boot files.

41)Explain types of backup
  • Full backup or normal backup : complete data is backup with archive bit is clear
  • Incremental backup : only new data is backup for which archive bit is set and after
  • backup archive bit is clear.
  • Differential backup :only new data is backup for which archive bit is set and after
  • backup archive bit is not set.
  • Copy backup : complete data is backup with archive bit not cleared.
  • Daily backup : data is backup based on modified dates.

42)  Which are the various method or media used for backup ?
 Hard drive, Tape(DAT), DLT, LTO, etc.

43)Difference between Incremental backup and Differentail backup ?
     refer to question 3

44)Differenc between Normal and Incremental Backup ?
     Refer to question 3

    45)  What is firewall ?
     It is a software used to provide security to your network by not allowing
unauthorised access to your Internal network from External users. Eg : PIX firewall,
Checkpoint firewall, etc.

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