Tata Communications
CEVA Logistics Interview Questions and Answers
Q1. What is floating routing and how we can configure it
Floating routing is a technique used to route traffic between two networks without a direct physical connection.
It involves creating a virtual interface on each network and configuring them to communicate with each other.
This can be done using protocols such as GRE or IPsec.
Floating routing can be useful in scenarios where a direct physical connection is not possible or desirable, such as connecting two data centers.
Configuration can vary depending on the specific network equ...read more
Q2. How to tshoot when you are not going to ping?
Use alternative network troubleshooting methods like traceroute, netstat, nslookup, and checking firewall rules.
Use traceroute to identify the path taken by packets and locate any network issues.
Use netstat to check for open ports and connections.
Use nslookup to verify DNS resolution.
Check firewall rules to ensure they are not blocking traffic.
Use packet capture tools like Wireshark to analyze network traffic.
Check system logs for any errors or warnings related to network con...read more
Q3. What is OTN?
OTN stands for Optical Transport Network, a high-speed network technology used for transmitting large amounts of data over optical fibers.
OTN is a standardized protocol for optical networking
It uses wavelength division multiplexing (WDM) to increase bandwidth
OTN supports different types of traffic, including voice, video, and data
It provides features like error correction, fault management, and network resilience
OTN is used in long-haul and metro networks, data centers, and c...read more
Q4. What is SDH?
SDH stands for Synchronous Digital Hierarchy, a standard for transmitting digital signals over optical fiber networks.
SDH is used for high-speed communication in telecommunications networks.
It is a standardized protocol for transmitting digital signals at different rates.
SDH is used to multiplex different signals onto a single fiber optic cable.
It provides a reliable and efficient way to transmit data over long distances.
Examples of SDH rates include STM-1 (155 Mbps) and STM-...read more
Q5. 1 What is PSTN? 2 what is OSI model? Explain in brief.
PSTN is a traditional telephone network that uses copper wires to transmit analog voice data.
PSTN stands for Public Switched Telephone Network
It is a circuit-switched network that uses analog signals
It is being replaced by digital networks like VoIP
Examples of PSTN services include landline phones and fax machines
Q6. What is MAC? Explain in brief.
MAC stands for Media Access Control. It is a unique identifier assigned to network interfaces for communication.
MAC address is a 48-bit address assigned to network devices.
It is used to identify devices on a network.
MAC addresses are assigned by the manufacturer and cannot be changed.
MAC filtering is a security feature that allows or denies access to a network based on MAC addresses.
Example: 00:1A:2B:3C:4D:5E is a MAC address.
Q7. What is reverse lookup
Reverse lookup is the process of finding the hostname associated with a given IP address.
It is commonly used in network troubleshooting.
It can be performed using the 'nslookup' command in the command prompt.
Reverse lookup is the opposite of forward lookup, which finds the IP address associated with a given hostname.
Q8. What is BGP?
BGP stands for Border Gateway Protocol. It is a routing protocol used to exchange routing information between different networks on the internet.
BGP is used to connect different autonomous systems (AS) on the internet.
It is a path-vector protocol that selects the best path for data to travel between networks.
BGP is used by internet service providers (ISPs) to connect to each other and exchange routing information.
It is a complex protocol that requires careful configuration to...read more
Q9. What IP Address?
An IP address is a unique numerical identifier assigned to every device connected to the internet.
IP stands for Internet Protocol
IP addresses are used to identify devices on a network
There are two types of IP addresses: IPv4 and IPv6
IPv4 addresses are 32-bit numbers and IPv6 addresses are 128-bit numbers
Example of IPv4 address: 192.168.0.1
Example of IPv6 address: 2001:0db8:85a3:0000:0000:8a2e:0370:7334
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