Network Services Flashcards
To connect to a website and display its contents, a URL entered in the web browser address bar needs to be translated into an IP address. Which server is used to handle this type of request?
DNS Server
Which of the DNS database records listed below returns a 32-bit IP address?
A
The DNS database AAAA record creates a pointer that maps a hostname to:
IPv6 Address
Which of the DNS database records maps a domain name to a list of mail servers for that domain?
MX
(Mail Exchange)
What is the function of a DNS TXT record?
Provides outside services with additional information about a domain
(Not used to direct any traffic)
Which DNS TXT records are used for spam management?
SPF (Sender Policy Framework)
DKIM (DomainKeys Identified Mail)
DMARC (Domain-based Message Authentication, Reporting & Conformance)
What allows the receiver of an email message to verify that the message claimed to have come from a specific domain was indeed authorized by the owner of that domain?
DKIM
(DomainKeys Identified Mail)
An authentication method that enables signing an outbound email message with digital signature.
DKIM
(DomainKeys Identified Mail)
An open standard defining a technical method to prevent electronic mail sender address forgery.
SPF (Sender Policy Framework)
A DNS TXT record that allows the owner of a domain to specify all the servers authorized to send mail from their domain?
SPF (Sender Policy Framework)
A DNS TXT record containing instructions for the recipient of an email message on how to handle emails that do not align with the sender’s mail policies?
DMARC
(Domain-based Message Authentication, Reporting & Conformance)
Which server type enables automatic allocation of IP addresses on a network?
DHCP Server
The time a DHCP client can use an IP address dynamically assigned by the DHCP server is referred to as what?
Lease
Which term refers to permanent IP address assignment from a DHCP server?
Reservation
A range of IP addresses that a DHCP server can lease out to DHCP clients is known as?
Scope
A dedicated file server is also referred to as what?
FTP Server
IPP, LPD/LPR, and SMB/CIFS are examples of protocols that enable what kind of network service?
Printing
What is the function of an SMTP server?
Email Handling
Which type of server is used for collecting diagnostic and monitoring data from networked devices?
Syslog Server
What is the function of an HTTP server?
Serving of web pages
Which part of the AAA security architecture deals with the verification of the identity of a person or process?
Authentication
The process of granting or denying access to resources? (Part of AAA security architecture)
Authorization
In the AAA security architecture, the process of tracking accessed services as well as the amount of consumed resources is called what?
Accounting
2 solutions that provide the AAA functionality
TACACS+ (a remote authentication protocol)
RADIUS
The protocol and port number used by spam filter?
SMTP
25
A physical network device or software solution designed for managing the optimal distribution of workloads across multiple computing resources is known as:
A Load Balancer
In computer networking, a computer system or application that acts as an intermediary between another computer and the Internet is commonly referred to as:
A Proxy
Which system refers to industrial and manufacturing control system?
SCADA
(Supervisory Control and Data Acquisition)
An emerging field of new technologies, such as wearable tech or home automation is known as what?
IoT
(Internet of Things)
