Job Description of Windows L3 Administrator

Windows System Admin (Level 3) Skills: Windows Admin 2008, VmWare, AD, Exchange and Citrix Primarily responsible to handle Windows Servers, Microsoft AD and exchange infrastructure. Candidate should be experienced and capable to administer, control, and generally provide support to AD and Exchange. Experience in Planning and Execution of Migration of Active Directory & Microsoft Exchange. Experience on Design, Deployment & Administration of overall Microsoft technologies. Technical Skills: • Minimum 5 years’ experience on Design, Deployment & Administration of Active Directory 2003 / 2008 & Exchange 2003 / 2010 • Hands on experience on Disaster recovery of Active Directory 2003 / 2008 & Microsoft Exchange 2003 / 2010 • Experience on Monitoring of Active Directory 2003 / 2008 and Microsoft Exchange 2003 / 2010 • Experience on Planning and Execution of Migration of Active Directory & Microsoft Exchange. • Experience on Design, Deployment & Administration of AD-RMS. • Experience on Design, Deployment & Administration of SCSM, SCCM & SCOM. • Experience on Design, Deployment & Administration of OCS and Lync. • Experience on Design, Deployment & Administration of ISA and TMG/Forefront • Experience on Design, Deployment & Administration of IAS / IIS / DNS / DHCP/Terminal servers. • Experience on SharePoint administration. • Experience on Design, Deployment & Administration of virtualization (Hyper-V) • Experience on Design, Deployment & Administration on PKI. • Experience on SQL server administration and Symantec Enterprise vault administration is preferred. • Experience on Windows Server 2003 32 bit and 64 bit and above preference towards Windows Server 2008 - strongly preferred • Experience on Vmware Vsphere • Experience on Citrix Presentation Server 4 and above, preference towards Presentation Server 4.5 and/or XENAPP 5.0 • Experience on XenDesktop 4 or 5 • Eexperience on application installation and how it interacts with the Citrix Application (registry, file system, etc). • Knowledge and working experience on PowerShell / Scripts. • Knowledge and working experience on Blackberry BES. • Knowledge and Experience on Citrix is preferred. • Basic Core Networking (Routing & Switching) knowledge and experience is preferred. Responsibilities: • Overall duties will include identifying and resolving issues within the scope of Microsoft domain, planning and executing and participation in Disaster Recovery exercises. • Perform upgrades, patching and other core administrative functions. • Perform capacity planning related to exchange database growth and system utilization, trend analysis and predicting future requirements. • Maintain documentation of configuration, administration and maintenance procedures according to program requirements. • Assisting in and monitor policies, procedures and standards relating to AD / Exchange and other Microsoft applications’ administration • Initiate the Inquiry/purchase requirements with department & project approvals. • Interact with procurement in processing the purchase and invoice proceedings. • Analyze problem areas, interpret operational needs and develop a creative solution. • Work in cross functional team to perform analysis, design, testing and implementation. Ensure technical information and ideas are understandable to target audiences .Keep the system current with changing technologies. • Work closely with other departmental entities and provide comprehensive support Provide technical support to • all end users and keep them updated about the options. • Perform other related duties incidental to the work described in support of the department. • Develop reports reflecting all the necessary fields and maintain the usage, capacity management, health check and monitor reports. • Perform other related duties incidental to the work described in support of the department. • Should be having the capacity to design/plan lead the projects. • Ability to utilize SCOM & other Microsoft System Center products to monitor & configure both physical and virtual systems.

DNS Interview Questions

DNS Interview Questions

DNS Interview Questions And Answers

1.What is DNS?
Domain Naming Services or System: - used for resolving host names to IPs and IPs to Host Names.

2.What is NBNS?
NetBIOS Naming System, ex. - WINS, 2k access resources using DNS naming Conventions

3.What is a Forward Lookup?
Resolving Host Names to IP Addresses

4.What is Reverse Lookup?
It's a file contains host names to IP mapping information.

5.What is a Resource Record?
It is a record provides the information about the resources available in the N/W infrastructure.

6.What are the diff. DNS Roles?
Standard Primary, Standard Secondary, & AD Integrated.

7.What is a Zone?
Zone is a sub tree of DNS database.

8.What is primary, Secondary, stub & AD Integrated Zone?
Primary Zone: - zone which is saved as normal text file with filename (.dns) in DBS folder. Maintains a read, write copy of zone database
Secondary Zone: - maintains a read only copy of zone database on another DNS server. Provides fault tolerance and load balancing by acting as backup server to primary server.
Stub zone: - contains a copy of name server and SOA records used for reducing the DNS search orders. Provides fault tolerance and load balancing.

9.What does a zone consist of & why do we require a zone?
Zone consists of resource records and we require zone for representing sites.

10.What is Caching Only Server?
When we install 2000 & 2003 server it is configured as caching only server where it maintains the frequently accessed sites information and again when we access the same site for next time it is obtain from cached information instead of going to the actual site.

11.What is forwarder?
When one DNS server can't receive the query it can be forwarded to another DNS once configured as forwarder.

12.What is secondary DNS Server?
It is backup for primary DNS where it maintains a read only copy of DNS database.

13.How to enable Dynamic updates in DNS?
Start>Program>Admin tools> DNS >Zone properties.

14.What are the properties of DNS server?
INTERFACES, FORWARDERS, ADVANCED, ROUTINGS, SECURITY, MONITORING, LOGGING, DEBUG LOGGING.

15.Properties of a Zone?
General, SOA, NAMESERVER, WINS, Security, and ZONE Transfer.

16.What is scavenging?
Finding and deleting unwanted records.

17.What are SRV records?
SRV are the service records, there are 6 service records. They are useful for locating the services.

18.What are the types of SRV records?
MSDCS:Contains DCs information
TCP:Contains Global Catalog, Kerberos & LDAP information.
UDP:Contains Sites information
Sites:Contains Sites information
Domain DNS Zone:Conations domain's DNS specific information
Forest DNS zone:Contains Forest's Specific Information.

19.Where does a Host File Reside?
c:\windows\system32\drivers\etc.

20.What is SOA?
Start of Authority: useful when a zone starts. Provides the zone startup information

21.What is a query?
A request made by the DNS client to provide the name server information.

22.What are the diff. types of Queries?
Recursion, iteration

23.Tools for troubleshooting DNS?
DNS Console, NSLOOKUP, DNSCMD, IPCONFIG, Logs, PM.