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AT&T Network Security Engineer Interview Questions and Answers
AT&T Network Security Engineer Interview Experiences
1 interview found
Mulayamsingh Yadav
I applied via Naukri.com and was interviewed in Mar 2021. There were 3 interview rounds.
Interview Questionnaire
4 Questions
- Q1. What is difference between phase of site to site vpn?
- Ans.
The phases of site-to-site VPN are the steps involved in establishing and maintaining a secure connection between two networks.
Phase 1: Authentication and key exchange
Phase 2: Data encryption and tunnel establishment
Phase 3: Traffic protection and monitoring
Each phase has its own set of protocols and processes
For example, in Phase 1, the VPN peers authenticate each other using methods like pre-shared keys or digital ce
- Q2. What is NAT?
- Ans.
NAT stands for Network Address Translation. It is a technique used to map a public IP address to a private IP address.
NAT is used to conserve public IP addresses.
It allows multiple devices to share a single public IP address.
NAT can be implemented using hardware or software.
There are three types of NAT: Static NAT, Dynamic NAT, and Port Address Translation (PAT).
- Q3. What know about BGP?
- Ans.
BGP stands for Border Gateway Protocol, a routing protocol used to exchange routing information between different networks.
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 based on various attributes.
BGP is used by internet service providers (ISPs) to exchange routing information with each other.
It is a complex protocol t...
- Q4. Some situations based questions
Interview Preparation Tips
Skills evaluated in this interview
Top trending discussions
Interview questions from similar companies
Network Security Engineer Interview Questions & Answers
Bharti Airtel
Anonymous
posted on 3 Jun 2024
Selected
I applied via Naukri.com and was interviewed in May 2024. There were 2 interview rounds.
(1 Question)
- Q1. Only tech round, technical question based on network and security?
(1 Question)
- Q1. HR round only to check communication skills
Interview Preparation Tips
(1 Question)
- Q1. Not Available, can't disclose
(1 Question)
- Q1. Not Available, can't disclose.
(2 Questions)
- Q1. What is asp packet capture
- Ans.
ASP packet capture is a method of capturing and analyzing network traffic to identify potential security threats.
ASP stands for Application Service Provider.
Packet capture involves capturing data packets as they travel across a network.
ASP packet capture helps in monitoring network traffic for security purposes.
Tools like Wireshark can be used for ASP packet capture.
- Q2. Explain Vlan and its types
- Ans.
VLAN stands for Virtual Local Area Network. It is a network technology that allows for segmentation of a single physical network into multiple virtual networks.
VLANs help in improving network security by isolating traffic between different departments or groups.
There are two main types of VLANs: Port-based VLANs and Tag-based VLANs.
Port-based VLANs assign ports on a switch to different VLANs, while Tag-based VLANs use ...
Skills evaluated in this interview
ravindar
Selected
I was interviewed in Feb 2025.
(2 Questions)
- Q1. Call flow 4G 5G
- Q2. Troubleshooting of subscriber issues
(2 Questions)
- Q1. PCRF AND CLOUD INFRASTRUCTURE
- Q2. Telecommunication knowledge
Interview Preparation Tips
Associate Network Engineer Interview Questions & Answers
Tata Communications
Anonymous
posted on 8 Dec 2024
Selected
I applied via Referral and was interviewed in Nov 2024. There were 3 interview rounds.
(1 Question)
- Q1. Regarding subnetting
(1 Question)
- Q1. Regarding all networking
(1 Question)
- Q1. Personal details
(2 Questions)
- Q1. Self interduction
- Q2. Pervious company experience
- Ans.
Worked as a Network Engineer at XYZ Company for 3 years.
Managed and maintained network infrastructure
Configured routers, switches, and firewalls
Troubleshooted network issues and implemented solutions
Collaborated with cross-functional teams for project implementations
(2 Questions)
- Q1. Fiber colour coding
- Q2. Splicing lan colour coding
(1 Question)
- Q1. Salary discussion
Sunny Kumar
(2 Questions)
- Q1. What is ECI MUX and ECI Alarm ?
- Q2. What is SDH card and MUX ?
Network Associate Interview Questions & Answers
Tata Communications Transformation Services
Anonymous
posted on 27 Feb 2025
Discussed with my interest for this field and how can I implement my skill in this company.
(1 Question)
- Q1. Volte call flow
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