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Homi Lab Interview Questions and Answers
Q1. What is difference between straight through and cross over cabling
Straight through cables are used to connect different types of devices, while crossover cables are used to connect similar devices.
Straight through cables have the same wiring at both ends, while crossover cables have the wiring reversed at one end.
Straight through cables are commonly used to connect a computer to a switch or router, while crossover cables are used to connect two computers or two switches directly.
Examples of straight through cables include connecting a compu...read more
Q2. What are trunck and access ports
Trunk ports carry traffic for multiple VLANs, while access ports carry traffic for a single VLAN.
Trunk ports are used to interconnect switches and carry traffic for multiple VLANs
Access ports are used to connect end devices and carry traffic for a single VLAN
Trunk ports use tagging to differentiate between VLANs
Access ports do not use tagging and assign all incoming traffic to a specific VLAN
Q3. Port number of FTP, HTTP, DNS, DHCP
Port numbers for FTP, HTTP, DNS, DHCP
FTP uses port 21 for control and port 20 for data transfer
HTTP uses port 80 for communication
DNS uses port 53 for domain name resolution
DHCP uses port 67 for server and port 68 for client communication
Q4. What is a VLAN
A VLAN (Virtual Local Area Network) is a logical grouping of devices on a network that communicate as if they are on the same physical network.
VLANs help improve network security by isolating traffic between different groups of devices.
They can be used to segment network traffic for different departments, applications, or security levels.
VLANs are configured at the switch level and allow for more efficient use of network resources.
For example, a company may have separate VLAN...read more
Q5. What is SNMP
SNMP stands for Simple Network Management Protocol, used for monitoring and managing network devices.
SNMP is a protocol used to manage and monitor network devices
It allows network administrators to collect information from network devices like routers, switches, servers, etc.
SNMP operates on the application layer of the OSI model
It uses a manager-agent model where the manager collects data from agents on network devices
SNMP uses MIB (Management Information Base) to define the...read more
Q6. Name some Firewalls in market
Some popular firewalls in the market include Cisco ASA, Palo Alto Networks, Fortinet FortiGate, and Check Point.
Cisco ASA
Palo Alto Networks
Fortinet FortiGate
Check Point
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