CV

Dear _________

In replay to your job vacancy announcement in Mongol messenger an Ulaanbaatar post , I would like apply for the position of secretary at the telecommunication engineer of department.

A year ago, I graduated from the Institute of Information and Communication Technological University.

I can write and speak in English. I know how to connect and set up optic cable, data link and ability to work well computer’s programs.

Your faithfully Battsetseg

Name: Battsetseg Ganbold
Address: 32-168 17 khoroo Songino Khairkhan district
Tel: 99721867
Date of birth: 27 September 1991
Marital status: single (unmarried)
Photograph: enclosed
Special interest: team sport, music, singing
Education: Institute of Information and technological University
Subject studied: optic cable, data link, radio communication



Cover letter

Battsetseg, Ganbold
Ulaanbaatar Mongolia
Tel: 99721867
akchab_927@yahoo.com
23- November -2010

G Mobile central office
Sukhbaatar district
Mrs. Tsetsegjargal
G Mobile corporation


Dear G Mobile human resources

I have heard about this position from street board, newspaper and internet. I interested this job. I have studied about G Mobile already and I like it. I think it’s fortune to develop my skills.

Because I study at IICT, MUST, I have studied optic cable, telecommunication, data link and computer’s programs.

Although the enclosed resume provides a good summary of my background and experience. I would like to arrange to meet with you to discuss my qualifications for this position.

Thank you for your time attention.
Your sincerely Battsetseg









Reference letter

The institute of Information and Communication technology MUST.

Definition of ______________ Teacher on student Battsetseg

Battsetseg is student who enrolled our university in 2008 and has been majoring in telecommunication engineer at IICT.

She mastered learning method studying independently and initialing social activities since she has enrolled our university she can be one of the good students. I was teaching her class for tree years it was known that she is very helpful, friendly and very nice smiling for everything. Also she can plays basketball, volleyball, and table tennis very well.

I hope become best telecommunication engineer of Mongolia.

Sincerely
G.Bayarmaa teacher of IICT
E-mail address : G.Bayarmaa_82@yahoo.com






Abstract

Data Communications Protocols

The data industry borrowed the protocol term, an apt metaphor, from the world of diplomacy.
Layer1-Physical
Layer 1 transfers bits across a circuit, which can be any transmission medium including wire, fiber optics, coaxial cable, or wireless.
Layer2-Datalink
Datalink protocols provide link integrity to transmit frames of data between endpoints.
Layer 3—Network
The network layer routes packets between endpoints on a network. A packet is a frame with a header that contains addressing and other information.
Layer 4—Transport
The transport layer assures integrity between endpoints. Transport protocols
establish and terminate connections, segment data into manageable PDUs, and reassemble them at the receiving end.
Layer 5—Session
Session service is an optional function that may be embedded in the application as opposed to employing a separate protocol.
Layer 6—Presentation
This layer provides the syntax for the session. For example, it might translate between ASCII and EBDIC if the two systems use a different format.
Layer 7—Application
Examples of application layer functions now in use are ITU-T’s X.400 Electronic Mail Protocol and its companion X.500 Directory Services Protocol.
ETHERNET: IEEE 802.3
Standards work began with modest objectives of sharing facilities: files, expensive peripherals such as printers and plotters, and software applications. Stations can detect other transmissions in a wired network, but a finite time known as the collision window is required for a pulse to traverse the length of the medium.
TRANSMISSION CONTROL PROTOCOL/INTERNET PROTOCOL (TCP/IP)
In the 1970s, the Department of Defense commissioned the development of the TCP/IP suite of protocols to provide interoperability among computers.
User Datagram Protocol (UDP)
Error correction delays packet flow. To a data application, delay is either invisible or appears as a longer response time, which may be annoying but does not affect integrity.
Internet Protocol (IP)
Routers at IP nodes usually have multiple paths for delivering packets. An IP datagram contains a header that is 20 octets or more in length plus a data field that can be up to 65,535 octets long.