Data Communication and Network Security
2014-2015 - IMT2431 - 10 ECTS

On the basis of

  • IMT1031 - Grunnleggende programmering
  • REA1101 - Matematikk for informatikkfag

Expected learning outcomes


  • The candidate possesses thorough knowledge of models and protocols in data communication networks.
  • The candidate possesses thorough knowledge in the theory of network security.
  • The candidate is capable of applying his/her knowledge in the field of IT-security.
  • The candidate is capable of updating his/her own knowledge in data communication networks.


  • The candidate is capable of performing basic network administration tasks.
  • The candidate is capable of performing error tracking and solving in basic networks.
  • The candidate knows relevant methods and terminology in the area of data communications.

General competence:

  • The candidate is capable of working independently and in groups in the field of data communication.
  • The candidate is capable of designing, analyzing, and performing maintenance on basic networks.

After completion of the course, the students:

  • Will have knowledge of the most used standards and protocols for data communication.
  • Will understand the principles of network security.


  • Basics of computer networks
  • Application layer (HTTP, SMTP, DNS)
  • Transport layer (TCP, UDP)
  • Network layer (IP, ICMP, routing)
  • IPv4 Network addressing including IPv4 NAT
  • Data link and physical layer (Ethernet, MAC, ARP, witching, VLANs)
  • Basics of network security, including applied cryptography
  • Authentication in networks (Kerberos)
  • Firewalls
  • Network Intrusion Detection Systems
  • Tunneling of protocols (PPP over SSH)

Teaching Methods

Laboratory work

Form(s) of Assessment


Form(s) of Assessment (additional text)

The exam consists of two main parts. The main parts are divided into sub-parts, these include the final exam of CCNA R&S Module 1 + 2, a written subnetting exercise, a router configuration part using Packet Tracer simulation software and a written exam of network security.
Part 1:  - electronic chapter exam (11 points) and final exam (39 points) CCNA Module 1
- written exam subnetting (25 points)
- skill test Packet Tracer (25 points),
counts 1/2 of final grade
Part 2: - electronic chapter exam (11 points) and final exam (39 points) CCNA Module 2
- written exam network security (50 points),
counts 1/2 of final grade
All sub-parts must be passed to pass the course
An overall evaluation based on a 200 point scale, where the first exam counts 100 points, the second exam counts 100. In order to pass the course both exams and sub-exams have to be passed (i.e. at least 35% score).
Conversion from 200 point scale to A-F scale according to recommended conversion table. In specific circumstances, emneansvarlig can slightly adjust the limits in the conversion table to enforce compatibility with the qualitative descriptions on the A-F scale.

Grading Scale

Alphabetical Scale, A(best) – F (fail)

External/internal examiner

Evaluated by internal examiner, external examiner is used periodically (every four years, next time in 2015/2016)

Re-sit examination

Single Parts of the exam can be re-taken again.

Examination support


Coursework Requirements


Teaching Materials

CISCO Netacademy teaching materials.

Handout articles.

Kurose, J. and Ross, K.W. (2008): Computer Networking: A Top-Down Approach, sixth edition. Addison- Wesley (recommended background material).
William Stallings: Cryptography and Network Security: Principles and Practice 6 Ed. (recommended background material).

Replacement course for