Practice Test Flash Cards 1-10
What are the characteristic features of In-Plane Switching (IPS)? (Select 3 answers)
High color quality, Wide viewing angles, and Slow response times.
Which of the following answers describe the Twisted Nematic (TN) technology? (Select 3 answers)
Low color quality, Low viewing angles, and faster response times.
Vertical Alignment (VA) display technology can be characterized by: (Select 3 answers)
High contrast ratios, Good viewing angles, and good color quality.
What are the characteristic features of an OLED display? (Select 3 answers)
Works without backlight, Lower light output than LCDs, and better color representation and contrast than LCDs
Which of the following answers refers to a device capable of providing both input and output functions?
Touch screen
Which of the following answers refer to the function of digitizer? (Select 3 answers)
Component of a mobile device’s screen that allows to control the device with a stylus or fingertip
Translates analog data into a format suitable for computer processing
A type of input device
Which of the answers listed below describe the function of a laptop’s inverter? (Select 2 answers)
Converts DC power into AC power
Used for supplying voltage to backlights in older types of LCD panels
Which of the following answers refer to common battery types that can be found in modern portable devices? (Select 2 answers)
Lithium-ion (Li-ion
Lithium-ion Polymer (LiPo)
Which of the following statements refer to the characteristic features of magnetic drives? (Select 3 answers)
High capacity, low cost, and low performance
Which of the answers listed below describe the features of Solid-State Drives (SSDs)? (Select 3 answers)
Low capacity, high cost, and high performance
Which of the following answers refers to a laptop’s Bluetooth module?
WPAN
A type of expansion card that enables communication over cellular network is referred to as:
WWAN
A very short-range communication method where a wireless signal is sent between two devices that are touching or nearly touching each other is a characteristic feature of:
NFC
A technology implemented in modern laptops that enables data transfer and authentication features between the laptop and another portable device at a very close range is known as:
NFC
Examples of USB ports that can be found on mobile devices include: (Select 3 answers)
USB-C, Micro USB, and Mini USB
Docking stations: (Select 2 answers)
Usually offer additional ports and capabilities compared to port replicators
Typically are designed to work only with a specific laptop make and model (proprietary design)
Which of the following answers refer to the 2G/3G mobile telecommunications standards? (Select 2 answers)
CDMA or Code Division Multiple Access
GSM or Global System for Mobiles.
A database on a mobile device containing bands, sub-bands and service provider IDs allowing the device to establish connection with the right cell phone tower is called:
PRL or Preferred Roaming List
Which type of software enables a centralized administration of mobile devices?
MDM or Mobile Device Management
Which of the following facilitates the enforcement of mobile device policies and procedures?
MDM or Mobile Device Management
Which of the following answers refers to a dedicated mobile app management software?
MAM or Media Asset Management System
Telnet: (Select 3 answers)
Provides username & password authentication
Transmits data in an unencrypted form
Enables remote login and command execution
The function of the NetBT protocol is to allow NetBIOS services to be used over TCP/IP networks.
True
LDAP is an example of:
Directory access protocol
What are the characteristics of SMB/CIFS? (Select all that apply)
CIFS or Common internet file system
1.) Provides shared access to files, directories, and devices
2.) Used mainly by computers running Microsoft Windows operating systems
Which port enables the FTP’s Data Connection for sending file data?
TCP port 20
The FTP’s Control Connection for administering a session is established through:
TCP port 21
SSH protocol runs on:
TCP Port 22
Which of the TCP ports listed below is used by Telnet?
23
TCP port 25 is used by:
SMTP
Which of the following ports is assigned to the Domain Name System (DNS)?
53
Dynamic Host Configuration Protocol (DHCP) runs on: (Select 2 answers)
UDP port 67, 68
Post Office Protocol v3 (POP3) uses:
TCP port 110
Which of the port numbers listed below are reserved for NetBIOS services? (Select 3 answers)
137, 138, 139
Which of the following TCP ports is used by the Internet Message Access Protocol (IMAP)?
143
An SNMP management station receives SNMP notifications from Agents on UDP port:
162
An SNMP Agent receives requests on UDP port:
161
Of the three existing versions of the Simple Network Management Protocol (SNMP), versions 1 and 2 (SNMPv1 and SNMPv2) offer authentication based on community strings sent in an unencrypted form (in cleartext). SNMPv3 provides packet encryption, authentication, and hashing mechanisms that allow to check whether data has changed in transit.
True
TCP port 389 is the default network port for:
LDAP
Which of the following ports is used by HTTPS?
TCP port 443
Which of the following protocols runs on TCP port 445?
SMB/CIFS or Common internet file system
A network technician uses Remote Desktop Protocol (RDP) client on their Windows OS to remotely troubleshoot a problem on another Windows machine. Which of the following ports needs to be opened for the built-in Windows RDP server to allow this type of network connection?
TCP port 3389
Transmission Control Protocol (TCP) is a connection-oriented protocol using a three-way handshake, which is a set of initial steps required to establish network connection. TCP supports retransmission of lost packets, flow control (managing the amount of data that is being sent), and sequencing (rearranging packets that arrived out of order).
True
User Datagram Protocol (UDP) is an example of a connectionless protocol. Because UDP does not support a three-way handshake while establishing a network connection, it is referred to as an unreliable or best-effort protocol.
True
Examples of connectionless protocols include: (Select 2 answers)
DCHP (Dynamic Host Configuration Protocol) and TFTP (Trivial File Transfer Protocol)
Which of the following answers refer to connection-oriented protocols? (Select 2 answers)
SSH (Secure Shell) and HTTPS
Which of the answers listed below refer to common applications that make use of TCP? (Select 3 answers)
File Transfer, web browsing, and email communication.
Which of the following answers refer(s) to common applications of UDP? (Select all that apply)
Video conferencing, online gaming, live streaming, and VoiP or Voice over IP
A device designed to filter and transfer data packets between dissimilar types of computer networks is called:
Router
Which of the answers listed below refers to a data-link layer device designed to forward frames between network segments?
Switch
A type of layer 2 network switch with configuration features that can be modified through a user interface is known as:
Managed Switch
An infrastructure device designed for connecting wireless/wired client devices to a network is commonly referred to as:
Access Point (AP)
A simple device consisting of multiple connector blocks and ports used for cable management is known as:
Patch Panel
Which of the following answers refers to a software or hardware that monitors network traffic and depending on the configuration settings applied to each data packet either blocks it or allows it to pass through?
Firewall
A solution that allows to supply electricity over standard Ethernet cables is known as: (Select 2 answers)
PoE
IEEE 802.3af
Which of the following answers refers to a dedicated device designed for supplying power over Ethernet cabling?
Injector
Which IEEE standard implements PoE+?
IEEE 802.3at
The IEEE 802.3bt standard implements: (Select all that apply)
PoE++
4PPoE
The disadvantage from using this device results from the fact that any incoming signal on any of its ports is re-created and sent out on any connected ports which has a negative impact on network performance.
Hub
A network segment utilizing only this type of device is the most prone to network performance degradation due to large number of network collisions.
Hub
Which of the following answers refer to the characteristic features of cable modems? (Select 3 answers)
Cabling that carries tv signals, coaxial cabling, and Shared bandwidth
Which of the answers listed below apply to DSL modems? (Select 3 answers)
Telephone lines, TP or Twisted Pair copper cabling, and Dedicated bandwidth
Which type of fiber-optic equipment can be found at a demarc?
ONT or Optical Network Terminal
Which of the answers listed below refers to a technology designed to simplify network infrastructure management?
SDN or Software-Defined Networking
What are the characteristic features of the IEEE 802.11a wireless standard? (Select 2 answers)
Maximum data signaling rate of 54 Mbps
5.0 GHz frequency band
Which of the answers listed below refer to the IEEE 802.11b wireless standard? (Select 2 answers)
Maximum data signaling rate of 11 Mbps
2.4 GHz frequency range
Which of the following answers refer to the IEEE 802.11g wireless standard? (Select 2 answers)
Maximum data signaling rate of 54 Mbps
2.4 GHz frequency range
Multiple Input / Multiple Output (MIMO) is a wireless technology that allows for significant increase in wireless data throughput due to the use of multiple antennas and multiple data streams.
True
The characteristic features of the IEEE 802.11n wireless standard include: (Select all that apply)
Multiple Input / Multiple Output (MIMO)
2.4 GHz frequency band
5.0 GHz frequency band
Maximum data signaling rate of up to 600 Mbps
Which of the following answers refers to the features of the IEEE 802.11ac (WiFi 5) wireless standard? (Select 3 answers)
5.0 GHz frequency band
Maximum data signaling rate of up to 6.933 Gbps
Multi-User Multiple Input / Multiple Output (MU-MIMO)
What are the characteristics of the IEEE 802.11ax (WiFi 6) wireless standard? (Select all that apply)
5.0 GHz frequency band
Multi-User Multiple Input / Multiple Output (MU-MIMO)
2.4 GHz frequency band
Maximum data signaling rate of up to 9.607 Gbps