Serco Interview Questions and Answers

To troubleshoot a system that is restarting continuously, you can follow these steps:

• Check for hardware issues such as overheating or faulty components

• Verify if any recent software or driver updates have caused the issue

• Examine the system logs for any error messages or patterns

• Test the system in safe mode to determine if a third-party application is causing the problem

• Perform a system restore to a previous stable state

• Scan for malware or viruses that may be affecting the syst...read more

SSD stands for Solid State Drive. It is a type of storage device that uses flash memory to store data.

• SSDs are faster and more reliable than traditional hard disk drives (HDDs).

• There are two main types of SSDs: SATA and NVMe.

• SATA SSDs are more affordable and have slower read/write speeds compared to NVMe SSDs.

• NVMe SSDs are faster and more expensive than SATA SSDs.

• SSDs are commonly used in laptops, desktops, and servers for faster boot times and improved performance.

IP stands for Internet Protocol. It is a set of rules that governs the communication between devices over the internet.

• There are two types of IP addresses: IPv4 and IPv6

• IPv4 addresses are 32-bit numbers and are written in the form of four decimal numbers separated by dots

• IPv6 addresses are 128-bit numbers and are written in the form of eight groups of four hexadecimal digits separated by colons

• IP addresses are used to identify devices on a network and enable communication bet...read more

Outlook POP3 and SMTP are protocols used for sending and receiving emails in Microsoft Outlook.

• POP3 (Post Office Protocol version 3) is used for receiving emails from a mail server.

• SMTP (Simple Mail Transfer Protocol) is used for sending emails to a mail server.

• POP3 and SMTP settings are required to configure email accounts in Outlook.

• POP3 and SMTP ports are used to establish a connection between Outlook and the mail server.

• Examples of POP3 and SMTP settings: pop3.example.com...read more

BIOS stands for Basic Input/Output System. It is a firmware that initializes hardware during the boot process.

• BIOS is responsible for performing a Power-On Self Test (POST) to check if all hardware components are functioning properly.

• It also provides a set of low-level routines to control the hardware, such as the keyboard, mouse, and hard drive.

• BIOS settings can be accessed and modified through a setup utility, which is usually accessed by pressing a key during boot-up (e.g....read more

DHCP stands for Dynamic Host Configuration Protocol. It is a network protocol that automatically assigns IP addresses to devices.

• DHCP is used to simplify network administration by automatically assigning IP addresses to devices.

• It allows devices to join a network and obtain an IP address without manual configuration.

• DHCP servers can also assign other network configuration settings such as subnet mask, default gateway, and DNS server addresses.

• DHCP leases are temporary and mus...read more

DNS port is a network port used for DNS communication.

• DNS port is usually port 53 for both TCP and UDP protocols.

• It is used for resolving domain names to IP addresses.

• DNS queries and responses are sent over this port.

• Firewalls and routers may block or filter DNS traffic on this port.