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Information Systems Technician Second Class (IT2) Advancement Practice Exam 2026 - Free IT2 Practice Questions and Study Guide course image
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  • Which is identified as a prerequisite to ensuring the continued existence of the United States?
  • JN-25 was used by which navy?
  • Which term describes the ability to ensure a nation's continued existence?
  • Which IPv6 address type is routable on the Internet?
  • Special handling designation messages are identified by an oblique signal, a slash mark, and which element repeated after the five related security characters?
  • Which statement best describes plain dress messages?
  • Which statement correctly describes hot standby?
  • In Code Dress messaging, which portion must be transmitted in the clear?
  • Which field is primarily associated with the radiation of energy from an antenna?
  • An antenna with electrical length equal to half the wavelength is called what?
  • Which incident response activity best fits the 'Lessons Learned' phase?
  • Which sequence accurately orders the RMF steps from start to finish?
  • What is the unit used to measure the frequency of a wave?
  • What happens during wireless roaming?
  • Which effect explains the change in perceived frequency when the source moves relative to the observer?
  • What is the correct characterization of stateful versus stateless firewalls?
  • Which term describes the most complex type of sound wave that can be produced?
  • Isoroku Yamamoto's role was in which navy?
  • What is the SHF frequency range?
  • In differentiating IDS and IPS, which statement is correct?
  • Which acoustic effect is caused by sound waves reflecting within a room, creating a lingering sound after the source stops?
  • A signal at 1 MHz falls in which frequency range?
  • Which option represents the primary colors of light?
  • A sound with a frequency of 10 hertz would be categorized as which type?
  • What is a typical backup retention policy described as rotating daily, weekly, and monthly backups?
  • Why is centralized logging important in enterprise IT, and which two log types are commonly used?
  • Which Linux command is commonly used to view or configure network interfaces?
  • The event associated with radar detection at Opana Point occurred in which year?
  • Name a primary mitigation for Phishing attacks.
  • What is the UHF frequency range?
  • Which combination of properties would generally increase the speed of sound in a medium?
  • The Zimmermann Telegram is associated with which intelligence discipline?
  • Which Linux command is used for secure remote login?
  • Which term best describes the level of energy carried by a sound wave?
  • The large family of waves including radio, visible light, and gamma rays is known as what?
  • Which format line will be used in Code Dress messages when the called station is required to deliver or refile the messages without decrypting it?
  • A signal at 250 GHz falls in which frequency range?
  • Change in frequency or pitch when a sound source moves toward or away from the listener is known as what?
  • A wave bending around obstacles or through openings is described by which term?
  • Which term best describes a recurring disturbance that advances through space and can occur with or without a traditional medium?
  • What is the correct order of a certificate trust chain from end-entity to the trusted root CA?
  • Range of compression wave frequencies to which the human ear is sensitive is called what?
  • The sensation the intensity of the sound wave produces on the ear is called what?
  • Which term refers to the line representing the undisturbed position of particles when no wave is present?
  • What is the position called that a particle of matter would have if it were not disturbed by wave motion?
  • In the shared responsibility model for cloud computing, which task is the customer responsible for?
  • Which type of message contains the originator and addressee designations in plain language external to the text?
  • A signal at 50 kHz falls in which frequency range?
  • What are SPF, DKIM, and DMARC used for in email security?
  • Which formula best defines risk in information security?
  • Light is a form of which type of energy?
  • Which of the following correctly pairs each CIA triad component with a concrete control?
  • Which type of messages received by nodes with a suspected strangler attached are accepted and processed to the called station?
  • Smallest unit of radiant energy that makes up light waves and radio waves?
  • Explain NAT vs PAT and provide a scenario for each.
  • Which communication facility is responsible for selecting the correct routing indicator for the comm facility serving the addressee?
  • Within the allied telecommunications record system special handling designation messages will be identified an oblique signal, slash mark and use of the appropriate assigned designator repeated how many times following the 5 related security characters appearing in format line 4?
  • Which of the following is NOT a private IPv4 address range?
  • Which statement best describes a Star topology and its advantage?
  • Which OSI layer manages sessions and is associated with APIs and RPCs?
  • In routing messages, which series publication governs the procedures and any national or regional defense organization supplements that apply?
  • Which year did Ole Roemer discover that light travels approximately 186,000 miles per second in space?
  • What is the purpose of VLAN tagging and which standard defines 802.1Q?
  • Describe the authentication differences between WPA2-Enterprise and WPA2-Personal.
  • Which type of message trails or is attached to a preceding message?
  • Distance in space occupied by one cycle of a radio wave at any given instant is called what?
  • Which VPN type is typically used for site-to-site connections at the network layer?
  • In World War I, the United States declared war on Germany in which month and year?
  • A substance through which you can see clearly is called?
  • The field associated with energy stored in the antenna is which?
  • How many miles per second does light travel?
  • Which of the following is NOT a primary color of light?
  • Which color is complementary to green in additive color mixing?
  • A sound with a frequency of 12,000 hertz would be categorized as which type?
  • What term describes the space occupied by one complete cycle of a radio wave at any given moment?
  • Name three common DNS record types and their purposes.
  • What does FISMA require and how does RMF relate?
  • Opana Point is located in which U.S. state?
  • Sound has three basic characteristics, pitch, intensity and what?
  • What is the vehicle through which the waves travel from one point to the next?
  • The constant approximately 186,000 miles per second is a property of light known as what?
  • At the onset of World War II, which nation was said to have a world-spanning intelligence network?
  • In plain dress messages, which format line, besides 2,4,5,6,7,8,11,12,13,15, is mandatory?
  • Sounds can be broadly classified into which two general groups?
  • Which classification designator will be used in format line 2 and 4 for all Code Dress messages?
  • ACP-117 is best described as which of the following?
  • The SCR-270 radar that detected the incoming Japanese planes in 1941 was located at Opana Point in which state?
  • What unit is used to measure the wavelength of light?
  • A multiple address message is one destined for how many addressees?
  • Which statement is true about energy storage in an antenna?
  • What is the term used for a message destined for more than one addressee?
  • In empty rooms or confined spaces, multiple reflections can cause what effect?
  • Which OSI layer handles frames and MAC addressing, typically with switches?
  • What term describes the rate at which the disturbance travels through a medium?
  • Which statement best describes the relationship between the OSI model and the TCP/IP model?
  • A signal at 500 MHz falls in which frequency range?
  • Which two basic fields are associated with every antenna?
  • Sounds that are capable of being heard by the human ear are referred to as what?
  • Which term designates the entire range of electromagnetic waves arranged in order of their frequencies?
  • JN-25 was the Japanese Navy's general purpose code. Which description matches JN-25?
  • What is the term for the time required to complete one full cycle of a radio wave?
  • The time between two successive crests is called what?
  • Which statement best describes the difference between symmetric and asymmetric encryption and names a typical algorithm for each?
  • What is the MF frequency range?
  • What is the primary purpose of defense in depth and segmentation in DoD networks?
  • In abbreviated plain dress messages, which format line is additionally mandatory beyond 2,4,11,12,13,15?
  • Which sequence represents the standard problem-solving model used for network issues?
  • Bending of the wave path when the waves meet an obstruction is called what?
  • Compare OSPF and RIP as interior routing protocols, focusing on convergence and scalability.
  • The SCR-270 radar detected incoming Japanese planes during which 1941 attack?
  • Which transport-layer protocols provide end-to-end communication and port multiplexing?
  • Which statement correctly describes standard versus extended ACLs on a router?
  • Which term describes a standby system that is not powered until failover is required?
  • The quantity that refers to the number of occurrences that take place in one second is called what?
  • Which statement correctly describes the difference between standard and extended ACLs?
  • What term describes a disturbance such as sound or light that moves through a medium or space?
  • What do you call the reflection of a sound wave that returns after striking a distant surface?
  • Which two techniques are commonly used to implement QoS?
  • Which color model uses Red, Green, and Blue as the primaries?
  • What property describes the ability of a strained object to return to its original shape after deformation?
  • Substances that allow light to pass but diffuse it so objects cannot be seen clearly are called?
  • How many times in one second can a light beam circle the Earth?
  • Which practice best mitigates SQL injection attacks?
  • JN-25 served as which type of code?
  • Which detection method is commonly associated with signature-based detection in network security monitoring?
  • A conductor or a set of conductors used either to radiate electromagnetic energy into space or to collect this energy from space?
  • The Earth’s atmosphere is divided into three main layers: Troposphere, Stratosphere, and which other layer?
  • For maximum absorption of energy from electromagnetic fields, the receiving antenna should be oriented with respect to which plane?
  • What are the tiny packets of electromagnetic energy that constitute light in current theory called?
  • What is the HF frequency range?
  • Which describes a Type 1 hypervisor?
  • What is the purpose of DISA STIGs and how are they used?
  • The speed at which wave crests propagate through a medium is called what?
  • The name of the scientist associated with early measurements of light speed in space?
  • What is considered to be the greatest achievement of COMINT during World War I?
  • Wireless communications were first introduced to the battlefield in which conflict?
  • What term is used for any disturbance that causes undesired change or degradation of a wave?
  • The modern theory states that light energy is carried by discrete packets called what?
  • Which physical security control is best described as detecting tampering with IT equipment?
  • Which type of message discloses the originator and all action or information addresse designations only within the encrypted text?
  • What is the purpose of regulatory domains and channel planning in Wi-Fi?
  • Term means movement through a medium
  • List the six steps of the incident response lifecycle in order.
  • Which frequency range defines the LF band?
  • The speed of a radio wave in free space equals the speed of light, approximately how many miles per second?
  • Which property is defined as mass per unit volume of any medium?
  • Which OSI layer provides user-facing services, including HTTP, DNS, and SMTP?
  • Which Windows command is used to verify if a network host is reachable?
  • Which term describes sounds with frequencies above 10,000 hertz?
  • For Code Dress messages routed to regional defense organizations or other nations, the transmission release code must appear in which format lines?
  • What is the distance between consecutive crests of a wave at a given instant?
  • What is a primary security benefit of offline backups in ransomware mitigation?
  • The frequency of a sound is referred to as what?
  • Which IPv6 address block is intended for private use within an organization?
  • In Code Dress messages, where are the originator and addressee designations disclosed?
  • Unit of measurement wavelengths are expressed in
  • A device used to radiate electromagnetic energy into space or to collect this energy from space?
  • What is a key IPv6 security consideration that differs from IPv4?
  • The Navy sets an upper limit for sonic frequencies at 10,000 hertz and a lower limit at what value?
  • In strangler mitigation, which format line contains the SSN used for comparison with the end-of-message validation number?
  • What is a common mitigation for ransomware threats?
  • Water waves in which the disturbance takes place in the direction of propagation are called what type?
  • A continuous series of waves having the same amplitude and wavelength
  • Whose plans for a routine inspection of his forces were thwarted by the United States?
  • In Code Dress messages, which format lines carry the classification designator?
  • Which Linux command provides real-time view of system processes and resource usage?
  • A signal at 6 GHz falls in which frequency range?
  • Which description best characterizes a hot standby system that can fail over instantly?
  • Messages will be prepared in one of how many formats for transmission via the allied telecommunications record system?
  • Which incident response option reflects a comprehensive, all-inclusive step within the lifecycle?
  • What is the purpose of channel planning in a Wi‑Fi network?
  • What is the VLF frequency range?
  • How many types of messages are authorized for preparation and transmission via the allied telecommunications record system?
  • Which IPv6 prefix is used for link-local addresses?
  • A signal at 10 GHz falls in which frequency range?
  • The number of cycles of a sine wave completed in one second is known as what?
  • What is the smallest unit of radiant energy that makes up light waves and radio waves?
  • Which backup type is most commonly used to minimize restore time and is performed after a full backup?
  • Given a network that requires at most 60 usable hosts per subnet, which CIDR notation provides the smallest subnet mask?
  • The SCR-270 radar at Opana Point contributed to warning during which 1941 event?
  • Which elements are commonly considered core components of a Public Key Infrastructure (PKI)?
  • Requests for routing indicator changes or deletions must be submitted through appropriate channels as outlined in the general instructions of which series?
  • What term defines a frequency that is an integer multiple of a smaller basic frequency?
  • What does Quality of Service (QoS) primarily do in a network?
  • The United States declared war on Germany in 1917. Which year is correct?
  • Which format lines are not used in a Code Dress message?
  • What is the VHF frequency range?
  • How many basic elements for transmission and reception of sound must be present before a sound can be produced?
  • A wave directed toward the surface of a mirror is called what?
  • What is the science of sound called?
  • Water waves are known as what type of waves because the motion of the water is up and down, or at angles to the direction in which the waves are traveling?
  • Which of the following is a physical security control used to restrict access to IT equipment?
  • Which field studies sound, including its production, transmission, and effects?
  • What is the purpose of the chain of custody in digital forensics?
  • What is the energy wave generated by a transmitter commonly called?
  • The term used for sounds that can be perceived by humans is which?
  • A narrow volume of light is called?
  • The angle between the reflected wave and the normal is called what?
  • Which stations will not assign collective routing indicators to originated messages unless specifically authorized?
  • What is the time required for one complete vibratory cycle called?
  • Which basic characteristic refers to the sound's tone color or timbre?
  • In additive color mixing, which color is complementary to blue?
  • Which wave property relates to the height of the wave from trough to crest?
  • Which statement accurately describes DAC, MAC, and RBAC?
  • What is the EHF frequency range?
  • Which statement correctly describes the main addressing differences between IPv4 and IPv6?
  • The header of all Code Dress messages will be in the clear. Code Dress messages routed to regional defense organizations or other nations must contain a transmission release code in which format lines?
  • Which nation had a world-spanning intelligence network at the start of World War II?
  • Which storage type provides high-speed block-level storage accessible to servers in data centers?
  • Which OSI layer handles data formatting and encryption/compression, such as TLS, SSL, and JPEG?
  • Which OSI layer is responsible for end-to-end communication and port multiplexing?
  • Which atmospheric layer lies above the Stratosphere?
  • The mid-1800s use of literal ciphers was primarily by which group?
  • The usable radio frequency range extends from 10 kHz to which upper limit?
  • Which two core IT skills are critical for IT2 advancement?
  • In the mid 1800s, literal (letter-for-letter) ciphers were primarily used by which group?
  • What are two basic physical properties that govern the velocity of sound through the medium?
  • What is the role of the Registration Authority (RA) in PKI?
  • What is the basic shape of the waveform produced by a transmitter?
  • What term refers to the mass per unit volume of a substance?
  • Which of the following is not a recognized message format for allied telecommunications record system messages?
  • Which description correctly outlines the DHCP four-way process (Discover, Offer, Request, Acknowledgement)?
  • What term describes a recurring disturbance advancing through space with or without a physical medium?
  • Which phenomenon results from the superposition of waves causing the overall wave to increase in amplitude?
  • Which color is complementary to red in additive color mixing?
  • Which VPN type is easier to deploy for remote access via a web browser?
  • Which diagnostic command is used to perform DNS lookups?
  • The measure of the sound energy of a wave is called what?
  • Which term describes sounds with frequencies below 15 hertz?
  • Admiral Yamamoto was a senior officer in which branch?
  • Which statement best describes permissions between NTFS and ext4?
  • If a fundamental frequency is f, which of these would be considered a harmonic component?
  • Wave property that give a relative indication of the amount of energy the wave transmits
  • A large volume of light is called?
  • To inhibit strangler messages, the node checks and compares the SSN appearing in format line 2 against the corresponding end-of-messages validation number appearing in which format line?
  • What unit is used to express the distance of a wave's cycle?
  • In feet per second, what is the speed of sound in air at 32 degrees Fahrenheit?
  • Which command displays active connections and listening ports on a Windows system?
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