Vserv Infosystems Interview Questions and Answers

PST stands for Personal Storage Table, a file format used by Microsoft Outlook to store email messages, contacts, calendar events, and other data.

• PST files can be used to backup or archive Outlook data.

• They have a maximum size limit of 20GB for Outlook 2007 and earlier versions, and 50GB for Outlook 2010 and later versions.

• PST files can be imported or exported in Outlook to transfer data between different computer...read more

There are mainly three types of networks: LAN, WAN, and MAN.

• Local Area Network (LAN) - used to connect devices within a limited area like a home, office, or school.

• Wide Area Network (WAN) - connects devices over a large geographical area, often using public infrastructure like the internet.

• Metropolitan Area Network (MAN) - covers a larger area than a LAN but smaller than a WAN, typically within a city.

Topology refers to the arrangement of nodes in a network and how they are connected.

• Topology defines the physical or logical layout of a network.

• Common topologies include bus, star, ring, mesh, and hybrid.

• Each topology has its own advantages and disadvantages in terms of cost, scalability, and fault tolerance.

The OSI model has 7 layers that define how different devices communicate over a network.

• The OSI model stands for Open Systems Interconnection model

• Each layer has specific functions and interacts with adjacent layers

• Layers include Physical, Data Link, Network, Transport, Session, Presentation, and Application

• Data is passed down through the layers on the sending device and up through the layers on the receiving devi...read more

APIPA stands for Automatic Private IP Addressing and is used when a device cannot obtain an IP address from a DHCP server.

• APIPA assigns a unique IP address to a device when it cannot connect to a DHCP server.

• It allows devices to communicate on a local network even without a DHCP server.

• APIPA addresses are in the range of 169.254.0.1 to 169.254.255.254.

• It is commonly used in small home or office networks where a DH...read more

Network & networking refers to the practice of connecting computers and other devices to share resources and information.

• Network refers to a collection of computers and devices connected together to share resources and information.

• Networking involves the design, implementation, and management of these networks.

• Types of networks include LAN (Local Area Network), WAN (Wide Area Network), and WLAN (Wireless Local Are...read more

DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that automatically assigns IP addresses to devices on a network.

• DHCP eliminates the need for manual IP address configuration

• It allows devices to easily connect to a network and obtain necessary network settings

• DHCP servers lease IP addresses to devices for a specific period of time

• Commonly used in home and business networks to manage IP ...read more

Routers connect different networks, while switches connect devices within the same network.

• Routers operate at Layer 3 (Network Layer) of the OSI model, while switches operate at Layer 2 (Data Link Layer).

• Routers can connect multiple networks (e.g., home network to the internet), while switches connect devices within a single network (e.g., computers in an office).

• Routers use IP addresses to route data, while switc...read more