TYPES OF RAM

types of harddisk

 What are routers?

Routers can connect two or more network segments. These are intelligent network devices that

store information in its routing table such as paths, hops and bottlenecks. With this info, they are

able to determine the best path for data transfer. Routers operate at the OSI Network Layer.

What is point to point link?

It refers to a direct connection between two computers on a network. A point to point connection

does not need any other network devices other than connecting a cable to the NIC cards of both

computers.

What is anonymous FTP?

Anonymous FTP is a way of granting user access to files in public servers. Users that are

allowed access to data in these servers do not need to identify themselves, but instead log in as

an anonymous guest.

 What is subnet mask?

A subnet mask is combined with an IP address in order to identify two parts: the extended

network address and the host address. Like an IP address, a subnet mask is made up of 32

bits.

 What is the maximum length allowed for a UTP cable?

A single segment of UTP cable has an allowable length of 90 to 100 meters. This limitation can

be overcome by using repeaters and switches.

 What is data encapsulation?

Data encapsulation is the process of breaking down information into smaller manageable

chunks before it is transmitted across the network. It is also in this process that the source and

destination addresses are attached into the headers, along with parity checks.

Describe Network Topology

Network Topology refers to the layout of a computer network. It shows how devices and cables

are physically laid out, as well as how they connect to one another.

NETWORKING QUESTION

1) What is a Link?
A link refers to the connectivity between two devices. It includes the type of cables and
protocols used in order for one device to be able to communicate with the other.

2) What are the layers of the OSI reference model?
There are 7 OSI layers: Physical Layer, Data Link Layer, Network Layer, Transport Layer,
Session Layer, Presentation Layer and Application Layer.

3) What is backbone network?
A backbone network is a centralized infrastructure that is designed to distribute different routes
and data to various networks. It also handles management of bandwidth and various channels.

4) What is a LAN?
LAN is short for Local Area Network. It refers to the connection between computers and other
network devices that are located within a small physical location.

5) What is a node?

Q. What are application partitions? When do I use them?

A1) Application Directory Partition is a partition space in Active Directory which an application can use to store that application specific data. This partition is then replicated only to some specific domain controllers.The application directory partition can contain any type of data except security principles (users, computers, groups).**A2) These are specific to Windows Server 2003 domains. An application directory partition is a directory partition that is replicated only to specific domain controllers. A domain controller that participates in the replication of a particular application directory partition hosts a replica of that partition. Only domain controllers running Windows Server 2003 can host a replica of an application directory partition.

Q. Name the AD NCs and replication issues for each NC

Schema NC, *Configuration NC, * Domain NCSchema NC: This NC is replicated to every other domain controller in the forest. It contains information about the Active Directory schema, which in turn defines the different object classes and attributes within Active Directory.
Configuration NC: Also replicated to every other DC in the forest, this NC contains forest-wide configuration information pertaining to the physical layout of Active Directory, as well as information about display specifiers and forest-wide Active Directory quotas.
Domain NC: This NC is replicated to every other DC within a single Active Directory domain. This is the NC that contains the most commonly-accessed Active Directory data: the actual users, groups, computers, and other objects that reside within a particular Active Directory domain.

Q. What is the SYSVOL folder?

The SYSVOL folder is critical because it contains the domain’s public files. This directory is shared out (as SYSVOL), and any files kept in the SYSVOL folder are replicated to all other domain controllers in the domain using the File Replication Service (FRS)—and yes, that’s important to know on the exam.The SYSVOL folder also contains the following items:

• The NETLOGON share, which is the location where domain logon requests are submitted for processing, and where logon scripts can be stored for client processing at logon time.

• Windows Group Policies

• FRS folders and files that must be available and synchronized between domain controllers if the FRS is in use. Distributed File System (DFS), for example, uses the FRS to keep shared data consistent between replicas.

You can go to SYSVOL folder by typing : %systemroot%/sysvol on DC.