Cisco Technical Consulting Engineer Interview Questions, Process, and Tips

Q1. DNS, How it works
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Q2. Best practices in the technology
Ans. 
Best practices in technology involve staying updated, following security protocols, testing thoroughly, and documenting processes.
• Stay updated on the latest technologies and trends

• Follow security protocols to protect data and systems

• Thoroughly test software and systems before deployment

• Document processes and procedures for future reference
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Q3. What are specific terms in the technology (Authentication mechanism, how they work, how servers communicate)
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Authentication mechanisms in technology involve various methods for verifying the identity of users and ensuring secure communication between servers.
• Authentication mechanisms include passwords, biometrics, two-factor authentication, and digital certificates.

• Servers communicate using protocols such as HTTPS, SSL/TLS, SSH, and OAuth.

• Authentication mechanisms work by verifying the credentials provided by the user against...read more
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Q4. What are certificates, how they work in the communication. TLS etc...
Ans. 
Certificates are digital documents used to verify the identity of a website or server in secure communication.
• Certificates are issued by a Certificate Authority (CA) to verify the identity of the website or server.

• TLS (Transport Layer Security) is a protocol that uses certificates to secure communication over the internet.

• Certificates contain information such as the public key of the website/server and the digital sign...read more
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Q1. Scenarios were presented by the Senior engineers and asked to present solutions.
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Q1. Networking protocols like ospf bgp MPLS sdwan
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Q2. Networking protocols like ospf bgp MPLS
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Q1. Routers relies in which layer?
Ans. 
Routers operate at the network layer (Layer 3) of the OSI model.
• Routers forward data packets between networks based on IP addresses

• They make decisions based on routing tables

• Routers are essential for connecting different networks together
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Q2. Dns types used in routing?
Ans. 
DNS types used in routing include A, AAAA, CNAME, and MX records.
• A record: Maps a domain name to an IPv4 address

• AAAA record: Maps a domain name to an IPv6 address

• CNAME record: Maps an alias domain name to the canonical domain name

• MX record: Specifies the mail servers responsible for receiving email for a domain
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Q1. Mostly questions on Computer networks likw layers.
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Q2. Diff between udp and tcp
Ans. 
UDP is connectionless and unreliable, while TCP is connection-oriented and reliable.
• UDP stands for User Datagram Protocol

• TCP stands for Transmission Control Protocol

• UDP is faster but less reliable

• TCP is slower but more reliable, as it ensures delivery of data packets

• UDP is used for streaming media, online gaming, and VoIP

• TCP is used for web browsing, email, file transfer
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Q1. Tell me a time you were faced with a challenge. How did you overcome that challenge?
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Q1. What are all the components needed in a home networking system
Ans. 
Components needed in a home networking system include modem, router, switch, access point, and network cables.
• Modem: connects to the internet service provider and converts the signal for use by the network.

• Router: directs network traffic between devices and manages the IP addresses.

• Switch: connects multiple devices within the network and allows them to communicate with each other.

• Access Point: provides wireless connect...read more
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Group discussion is to get to know you and see if you are a good fit with the team