Term 811
SFTP
SFTP (Secure File Transfer Protocol) is a network protocol that provides secure file transfer over SSH, encrypting both commands and data.
Acronym study
Terms 811–840 of 1033 N10-009 acronyms and key terms. Each entry includes a plain-English definition and a link to the full 800-word glossary page with exam context and practice questions.
Term 811
SFTP (Secure File Transfer Protocol) is a network protocol that provides secure file transfer over SSH, encrypting both commands and data.
Term 812
SHA-256 is a cryptographic hash function that takes any input data and produces a fixed 256-bit string of characters, like a unique digital fingerprint, used to verify data integrity and secure passwords.
Term 813
SHA-3 is the latest member of the Secure Hash Algorithm family, a standardized cryptographic hash function used to ensure data integrity and authenticity in IT systems.
Term 814
Shared resources are computing assets like storage, memory, or network bandwidth that multiple users or systems can access simultaneously from a common pool.
Term 815
Shared responsibility is a cloud security model where the cloud provider and the customer each own distinct parts of security and compliance duties.
Term 816
The shared responsibility model is a framework that defines which security and compliance tasks are handled by the cloud provider and which are handled by the customer.
Term 817
A Shared VPC allows multiple projects or accounts within a cloud environment to use the same Virtual Private Cloud (VPC) network, enabling centralized management and isolation of resources.
Term 818
A shield in IT networking is a conductive layer around a cable or device that blocks electromagnetic interference to protect signal integrity.
Term 819
Shielded Twisted Pair (STP) is a type of copper cabling that uses a metallic shield around twisted wire pairs to reduce electromagnetic interference and protect data signals.
Term 820
Shift left security is the practice of integrating security testing and controls earlier in the software development lifecycle, rather than waiting until after deployment.
Term 821
Short Message Service (SMS) is a text messaging service that allows short messages to be sent between mobile phones, pagers, and other devices using standardized communication protocols.
Term 822
Shutdown mode is a port security state on a switch port that disables the port when a security violation occurs, such as when an unauthorized device attempts to connect.
Term 823
A Signed URL is a time-limited, authenticated web link that grants temporary access to a private resource without requiring the user to log in.
Term 824
A SIM (Subscriber Identity Module) is a smart card that securely stores the international mobile subscriber identity (IMSI) and related key used to identify and authenticate a subscriber on mobile networks.
Term 825
Simple Mail Transfer Protocol (SMTP) is the standard internet protocol used for sending and relaying email messages from a client to a server or between servers.
Term 826
Single-mode fiber is a type of optical fiber used in high-speed, long-distance networking that transmits a single light signal along a very thin core, minimizing signal loss and enabling data to travel many kilometers without repeaters.
Term 827
SIP is a signaling protocol used to initiate, maintain, and terminate real-time communication sessions like voice and video calls over IP networks.
Term 828
A Service Level Agreement (SLA) is a contract between a service provider and a customer that defines the level of service expected, including metrics like uptime, response time, and penalties for non-compliance.
Term 829
SLAAC (Stateless Address Autoconfiguration) is a method that allows an IPv6 device to automatically generate its own IP address without needing a centralized server like DHCP.
Term 830
Slow performance means a computer, application, or network takes longer than expected to complete tasks, often due to resource limits, software conflicts, or hardware degradation.
Term 831
Small Computer System Interface (SCSI) is a set of standards for connecting and transferring data between computers and peripheral devices like hard drives, scanners, and tape drives.
Term 832
A Small Form-factor Pluggable (SFP) is a compact, hot-swappable transceiver module used to connect networking devices to fiber optic or copper cables, converting electrical signals into light signals for data transmission.
Term 833
A compact version of a standard RAM stick, mainly used in laptops and small form factor computers to provide system memory.
Term 834
A Smart jack is a network interface device that regenerates, monitors, and troubleshoots digital signals between a service provider and customer equipment, often used with T1 or fiber lines.
Term 835
SMB is a network file-sharing protocol that allows applications to read, write, and request services from server programs in a computer network.
Term 836
SMB (Server Message Block) is a network protocol used primarily for sharing files, printers, and other resources between computers over a local network.
Term 837
SMTP (Simple Mail Transfer Protocol) is the standard internet protocol used to send emails from a client to a server or between email servers.
Term 838
SMTPS (SMTP Secure) is a method for securing SMTP email transmission using TLS or SSL encryption, typically over port 465.
Term 839
A snapshot is a point-in-time copy of a system's data or state, used for backup, recovery, or testing without disrupting the original.
Term 840
SNMP (Simple Network Management Protocol) is an application-layer protocol used to collect and organize information about managed devices on IP networks and to modify that information to change device behavior.