10+ IGTL Solutions (Saudi Arabia) Limited Interview Questions and Answers

LSA Types are used in OSPF to describe the type of information contained in the LSA.

• Type 1: Router LSA - contains information about the router and its directly connected networks

• Type 2: Network LSA - describes the networks connected to a multi-access network

• Type 3: Summary LSA - contains information about networks outside of the area

• Type 4: ASBR Summary LSA - describes the ASBR router to the rest of the OSPF domain

• Type 5: External LSA - contains information about external net...read more

BGP attributes are used to determine the best path for routing traffic between autonomous systems.

• BGP attributes include: AS Path, Next Hop, Local Preference, Weight, Multi-Exit Discriminator (MED), Origin, and Community

• AS Path is a list of autonomous systems that the route has passed through

• Next Hop is the IP address of the next router in the path

• Local Preference is used to indicate the preferred path for outbound traffic

• Weight is a Cisco-specific attribute used to indicate ...read more

Respond promptly with concise information

• Provide relevant details quickly

• Avoid unnecessary elaboration

• Be clear and concise in communication

Linux Boot Process is the sequence of events that occur from power on to the login prompt.

• BIOS/UEFI firmware initializes hardware

• Bootloader loads kernel into memory

• Kernel initializes system processes and mounts filesystems

• Init process starts system services and user login

• Graphical user interface (GUI) or command line interface (CLI) is presented to user

150 computers can connect simultaneously through a network switch or router.

• Use a network switch or router to connect all 150 computers simultaneously.

• Ensure that the network infrastructure can handle the bandwidth and traffic of 150 computers.

• Set up the network with proper IP addressing and subnetting to avoid conflicts.

• Consider using VLANs to segregate traffic and improve network performance.

• Implement security measures such as firewalls and access control lists to protect t...read more

NIC teaming is the process of combining multiple network interface controllers to work as a single virtual NIC.

• NIC teaming provides redundancy and load balancing for network traffic.

• It can be configured in different modes such as switch independent, LACP, and static.

• NIC teaming is commonly used in server environments to improve network performance and availability.

• Example: Combining two 1 Gbps NICs to create a 2 Gbps virtual NIC.

• Example: Configuring NIC teaming in switch inde...read more

BGP is a routing protocol used to exchange routing information between different networks on the internet.

• BGP uses TCP as its transport protocol.

• BGP routers exchange information about the networks they can reach and the paths to those networks.

• BGP routers select the best path based on a set of criteria, including the shortest AS path and the lowest cost.

• BGP is used by internet service providers to connect their networks together.

• BGP is a complex protocol that requires careful...read more

WAN (Wide Area Network) and LAN (Local Area Network) are two types of networks that work together to connect devices over different geographical areas.

• WAN covers large geographical areas, connecting multiple LANs together.

• LAN is limited to a small area, like a single building or campus.

• WAN uses public infrastructure like telephone lines, fiber optics, or satellite links.

• LAN typically uses Ethernet cables or Wi-Fi for connections within a limited area.

• Example: A company may ha...read more