LECTIONS & TESTS

Syllabus

LS-00EN. Computer Networks & Networks Technologies - Syllabus 2023. (pdf)

Lection Slides

Consultation in Zoom (entering your Name-Surname and passcode: ISMA).

I. Overview OSI/RM & TCP/IP

LS-01EN. Networking Standards and the OSI Model. (.pdf)

1. Look. Each layer of the OSI model and TCP/IP explained. (Youtube, 20 min)

LS-02EN. Review of Important Networking Concepts. (.pdf)

1. Look. Review of Important Networking Concepts (example). (.ppsx)
2. Soft. WhoIs Domain LookUp. (link)
3. Soft. DNS LookUp. (link)
4. Soft. Country by IP. (link)
5. Soft. TCP/UDP Port Scaner. (link)
6. Soft. TCP/UDP Port Description Finder. (link)
7. Soft. MAC Address Finder. (link)

LS-01RU. Стандарты OSI/RM. Введение в TCP/IP. (.ppt)
LS-01RUa. Стандарты OSI/RM. Уровни кратко. (.ppt)
LS-01RUb. Стандарты Internet. (.pdf)
LS-02RU. Модель TCP/IP. Введение. (.ppt)

II. Physical Layer & Media

LS-03EN. Network Classification. Topology, Hardware, Transmission Media. (.pdf)

1. Look. Network Types: LAN, WAN, PAN, CAN, MAN, SAN, WLAN. (Youtube, 5 min)
2. Look. Network Topologies (Star,Bus,Ring,Mesh,Ad hoc,Infrastructure, WirelessMeshTopology). (Youtube,9min)
3. Look. Network Hub, Switch, Router. What is the difference? (Youtube, 7 min)
4. Look. Half Duplex vs Full Duplex. (Youtube, 4 min)

LS-04ENa. Data Communication. Line Coding. (.pdf)

1. Read. Line Coding Techniques. (link)

LS-04ENb. Block Coding, Scrambling. (.pdf)

III. Data-Link Layer

LS-05EN. Error Detection & Correction. (.pdf)

1. Read. Noise and the Shannon Limit. (link)
2. Read. Tutorial. Checksum and CRC Data Integrity. (.pdf)

LS-06EN. Multiple Access. (.pdf)

1. Look. CSMA/CD and CSMA/CA Explained. (Youtube, 6 min)

LS-07EN. EUI/MAC, ARP, Ethernet, VLAN. (.pdf)

1. Look. ARP Explained. (Youtube, 4 min)
2. Look. STP - Spaning Tree Protocol (EN). (Youtube, 15 min)

LS-06RU. Ethernet. CSMA/CD, LLC, VLAN. (.pdf)
LS-07RUa. Адресация в сетях. (.pdf)
LS-07RUb. OUI, EUI, MAC. (.pdf)
LS-07RUc. ARP - Address Resolution Protocol. (.pdf)
1. Look. STP - Spaning Tree Protocol (RU). (Youtube, 15 min)

IV. Network Layer I. IP, Addressation, Subnetting, ICMP

LS-08EN. IP - Internet Protocol. (.pdf)

LS-08ENa. IP Options. (.pdf)

LS-09EN. IP Addressing. Subnetting, supernetting. IPv6 addressing. (.pdf)

1. Look. NAT Explained - Network Address Translation. (Youtube, 4 min)
2. Look. What is Port Forwarding. (Youtube, 9 min)
3. Soft. Test your IPv6 connectivity. (link)
4. Soft. Checks your IPv6 and IPv4 connectivity and speed. (link)

LS-10EN. ICMP - Internet Control Message Protocol. (.pdf)

1. Look. Ping & Traceroute. (Youtube, 4 min)

LS-08RU. IP - протокол. (.pdf)
LS-09RUa. IP-адресация, классы сетей, маски, подсети, суперсети, VLSM, CIDR. (.pdf)
LS-09RUb. IPv6 протокол и адресация. (.pdf)
LS-10RU. ICMP, ping, traceroute, ICMP-routing, ICMPv6. (.pdf)

V. Transport Layer

LS-11EN. TCP and UDP. (.pdf)

1. Look. TCP vs UDP. (Youtube, 4 min)
2. Read. The TCP Finite State Machine (RFC 793). (.htm)

LS-11RUa. Транспортный уровень TCP/IP. Протокол UDP. (.pdf)
LS-11RUb. Протоколы TCP, SCTP, DCCP. (.pdf)

VI. Network Layer II. Forwarding & Routing

LS-12EN. IP Forwarding. Routing Tables. (.pdf)

1. Look. Forwarding. (Youtube, 30 min)

LS-13EN. Dynamic Routing DVA. RIP. (.pdf)

1. Look. RIP. (Youtube, 26 min)

LS-14EN. Dynamic Routing LSA. OSPF, AS, BGP. (.pdf)

1. Look. Routing OSPF. (Youtube, 6 min)
2. Soft. RIPE Database Query by IP or ASN. (link)
3. Soft. Find ASNs by country from he.net. (link)
4. Soft. Find CAIDA AS Topological Rank. (link)

LS-15EN. IP Multicasting. IGMP, PIM. (.pdf)

1. Look. Multicast Fundamentals. (Youtube, 9 min)

LS-12RU. IP Forwarding и Routing. AS. Статическая маршрутизация. (.pdf)

1. Look. Протоколы маршрутизации.

LS-13RU. Динамическая маршрутизация. DVA протоколы RIP и BGP. (.pdf)

1. Look. RIP - Routing Information Protocol

2. Look. BGP - Border Gateway Protocol.

3. Look. Multi Area & AS - Иерархическая маршрутизация.

LS-14RU. LSA протокол OSPF. Traffic Engineering. (.pdf)

1. Look. OSPF - Open Shortest Path First.

LS-15RU. Multicast. IGMP, PIM. (.pdf)

LS-15RUb. Дополнительный материал по Multicast. IGMP, PIM.

VII. Application Layer

LS-16RU. DNS. (.pdf)

1. Look. How the DNS Server Works (Domain Name System).

2. Look. DHCP Explained.

3. Look. SSL, TLS, HTTP, HTTPS.

LS-17RU. FTP. (.pdf)

1. Look. FTP (File Transfer Protocol), SFTP, TFTP Explained.

LS-18RU. SMTP, POP, IMAP. (.pdf)

1. Look. SMTP Explained.

2. Look. POP vs IMAP.

VIII. TCP/IP Administration & Security

LS-19EN. Spam and Phishing. (.pdf)

1. Look. TELNET. (Youtube, 5 min)

LS-20EN. TCP/IP Attacks, Defenses and Security Tools. (.pdf)

0. Read. CISCO. Understanding Common TCP/IP Attacks. (link)
0. Read. Attack on the TCP Protocol. (pdf)
1. Tools. NIST. National Checklist Program Repository. (link)
2. Look. Digital Attack Map. (link)
3. Look. DDoS Attack Explained. (Youtube, 6 min)
4. Look. Explanation of WIFi wireless security protocols - WEP, WPA, WPS. (Youtube, 9 min)

LS-20RU. Атаки на TCP/IP и защита сети. (.pdf)
LS-21RU. SNMP. MIB. (.pdf)
1. Tools. Free SNMP MIB Browser for Win, Lin, Mac. (download)

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IX. Modern Networks Solutions

LS-22EN. Internet of Things. (.pdf)

1. Look. Powerline Ethernet Networking Explained. (Youtube, 3 min)
2. Look. Tri-Band Wi-Fi Router Explained. (Youtube, 5 min)
3. Look. MU-MIMO Explained. (Youtube, 6 min)

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0. Briefly

01.-10. Tēmas īsā. (LV) (.pdf)
01.-05. LAN кратко. (RU) (.doc)
06-10. ARP, IP, TCP, UDP, DNS. (RU) (.ppt)
05.-10. TCP/IP - short. (EN) (.ppt)

Quizzes & Exam

IT ACADEMY Online Testing System (link)

QZ-01EN. Number Systems: 25 Questions / 25 Minutes. (.htm ProProfs)
QZ-02EN. Line Coding: 20 Questions / 45 Minutes. (.htm sqa.org.uk)
QZ-03EN. Midterm Quiz: 159 Questions / 120 Minutes. (.htm)

Тест 1. "Сетевые технологии".

Тест 2. "Сети ЭВМ и телекоммуникации".

Тест 3. Компьютерные сети - Основы.

Тест 4. Компьютерные сети - Средний уровень.

Тест 5. Маршрутизация.

Тест 6. TCP/IP.

QZ-03RU. Тренировочное тестирование перед экзаменом.

Вопросы и задания к экзамену 2016. (pdf)