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Net 455>A computer uses a dictionary of vulnerabilities in
published operations and application software
A computer uses a dictionary of vulnerabilities in published operations and application software (cve.mitre.org). What is the name of this dictionary? -CVE A user filed a complaint with their company's helpdesk support team about threatening pop-up messages. The messages say the user's files are encrypted due to terroristic activity and that the data will stay encrypted until paid in bitcoin. What type of attack is the user most likely witnessing? -Ransomware Which type of encryption cipher is used in Wi-Fi Protected Access 2 (WPA2)? (Select all that apply.)
- Advanced Encryption Stand (AES) -Chaining Message Authentication Code Protocol (CCMP) A vendor visits an organization to demo a network management device. As part of the hands-on demonstration, an IT engineer can see and manage an extended service set (ESS) on the network. Based on the engineer's experience with the device, what is the vendor demonstrating?
- Wireless controller A network administrator would like to setup a group of servers to retrieve the same content from a single host on the internal network. Which of the following will allow this type of data flow? (Select all that apply.)
- IGMP must be used to configure group membership. -A multicast IP address is assigned to the servers. Starting with Pin 1, what order of colored wires of a standard CAT
network cable would make it comply with the T568B standard? -Orange/White, Orange, Green/White, Blue, BlueWhite, Green, Brown/White, Brown A host uses Internet Protocol version 6 (IPv6). The host sends a packet over the Internet using router advertisement. The IPv6 packets insert into Internet Protocol version 4 (IPv4) packets. The packets route over the IPv4 network to their destination. What is providing this function?
- Tunneling A security analyst is looking at various network traffic but can't make heads or tails of most of the packets. Which of the following traffic would they be able to read without private keys? -Port 110 What tool can be used to test ethernet cabling?
- Wire map A network consultant is installing Ethernet to a hub in the control room. When Ethernet is wired with a hub, there needs to be a means
-Multifactor A network consultant is conducting a test to determine the amount of data transferred through a connection over a given period. What is the consultant testing? -Bandwidth The physical security department of a bank wants to require employees to authenticate through a locked barrier before accessing the sensitive areas of the building, such as the IT department. If
implemented, which of the following will best help regulate such physical access? (Select all that apply.) -Biometric Device -Smart Badge After a site survey, the network technician found the single wireless 2.4 gigahertz (Ghz) access point (AP) in a large office floor space does not have a strong enough signal, and is contending a significant amount of background noise and interference. What will these findings most likely limit on the AP's wireless signal? -They will limit the signal's range. A multi-tenant third-party cloud service that is available via the Internet can be described as which of the following cloud delivery models? -Public A communications company uses TIA/EIA IS- handsets that require each subscriber to use a code to key the modulation of their signal. The receiver uses this "key" to extract the subscriber's traffic from the radio signal. What type of handsets is the company using? -CDMA A network port does not seem to be working properly. Which of the following tools can be used to test if the the port is sending out data?
- Loopback plug A computer technician is reading archived logs and identifies that the company was using
work. Evaluate the given options. What will the engineers conclude to be the problem?
- Multimode fiber The tech office is requisitioning new phones and wants to explore their options with extended service areas. When a phone travels outside of its network, what is the phone doing? -Roaming A network engineer is setting up a network in a new building. What should the engineer complete to make sure the access points are properly placed? -Site survey A gamer is using a wireless AC router connected to a fiber optic network from the local Internet Service Provider (ISP). The gamer must ensure the ISP is providing close to advertised network speeds. Which is the most appropriate tool to gauge the available bandwidth? -A speed testing website A network administrator is measuring Key Performance Indicators (KPI) for an industrial network. Which of the following are examples of a KPI? (Select all that apply.)
- Mean Time to Repair (MTTR)
- Mean Time Between Failures (MTBF) The network security team of a company wants to reduce the attack surface of network devices by limiting the ways an attacker can physically connect to the network. Recommend some protocols or security settings that can support this
requirement? (Select all that apply.)
- Configure port security
- Close unused device ports A network consultant wants to install software to protect the company infrastructure from outside influence. What can the consultant use to block unwanted/unauthorized access?
- Firewalls An IT engineer works with desktop installation technicians who deploy new computers to users. The installation technicians report that users in one area of the building do not achieve network speeds above 100 Mbps. After evaluating the cabling choices, the IT engineer determines that the problem area uses which type of cabling?
- Cat 5
vulnerabilities can be observed. What is the name of this test?
- Penetration The entire office floor at a company is receiving new multi-functional phones at each office. These phones have the capability of sending and receiving regular telephone calls, text messages, and videos. Management wants to prevent as much clutter as possible so every desk looks tidy. Which of the following configurations should a network administrator implement to accommodate management's vision? (Select all that apply.)
- Setup QoS to reserve bandwidth.
- Setup PoE to connect to the phones. A system has a network of Graphic Processing Units (GPUs) computing nodes organized into a cluster for statistical analysis. During installation, the service providers installing the nodes are negotiating a Service Level Agreement (SLA) with management. The team establishes baselines and calculates Key Performance Metrics (KPI) by using the calculation (48 hours * 64 nodes)/2 failures, to determine one of the metrics. Select which KPI the service providers calculated. -MTBF
A network engineer received a ticket that people cannot connect to the printer. After researching the issue, the printer is property wired, as are the workstations. However, the network was misconfigured, leading to the printer being tagged incorrectly. What is the most likely cause of the issue?
- Incorrect VLAN What term refers to the orientation of waves propagating from a wireless antenna?
- Polarization An organization is putting an employee through security checkpoints that include a background investigation, account creation with proper privileges, assigning a laptop, and completing security training. What kind of policy is the employee under?
- Onboarding policy Which device type does an IT systems engineer install to control logical network traffic?
- Router There are many ways to authenticate a user based on an authentication card they have. However, a user must keep up with and is responsible for the authentication card as dictated through company onboarding training. Which of the following mitigates the risk of a lost or stolen authentication card?
- Prompts user for a PIN A network architect is looking for a method/process/component that would help secure the network by not allowing unknown devices to
- Complete a site survey Before entering a data center, there are multiple security lines, but the last line of defense is a closed-circuit alarm on the door to a server rack. If the door is opened without proper authorization, an alarm will sound. What is the purpose of the closed- circuit alarm on the door of the server rack?
- Tamper detection A user logged on to a desktop client and was immediately prompted to enter credit card information to proceed. What type of attack is the user witnessing on screen?
- Ransomware At the request of management, a senior server engineer deploys a proxy server for all users in the organization. The proxy provides many benefits for a uniform user experience and for IT management. Of the choices, which statements describe features the proxy provides? (Select all that apply.)
- Caching of web content
- Content filtering A helpdesk operator is reviewing the part of a MAC address which determines whether the frame is addressed to an individual node or a group. What is this called?
- I/G
Networks are vulnerable to several types of malicious attacks, and network engineers must prevent such attacks by various means. One means of protection available prevents denial of service (DOS) against a route processor over control or management plane protocols and packets. What answer choice describes this security method?
physical address to perform cache poisoning and perpetuate an on-path attack. Which of the following can prevent these types of attacks? (Select all that apply.)
- Address Resolution Protocol (ARP) inspection
- Configuration Protocol (DHCP) snooping
A security admin is auditing a newly deployed web server on the local network. After gaining knowledge of the server's (Internet Protocol) IP address, the admin runs the nmap utility. Which of the following objectives is the admin most likely to achieve when applying this utility? (Select all that apply.)
- Scan for open ports.
- Scan for unnecesary services. An attacker created a rogue access point (AP) with the same Service Set Identifier (SSID) as a legitimate one, and then used a Denial of Service (DoS) technique to overcome the legitimate AP. Users were forced to disconnect from the network and reassociate with the attacker’s AP. What is the goal of the attacker when setting up this kind of evil twin attack? (Select all that apply.)
- To snoop on connections with web servers
- To steal user network credentials A security administrator implements a device that operates at layer 3 to enforce an access control list (ACL). What is this called?
- Firewall A server instructs a switch to pause traffic temporarily to avoid overwhelming its buffer and causing it to drop frames. What is the name of this mechanism?
- CPU usage A custom client application is unable to communicate with the internal Internet Information Services (IIS) server. Pinging or establishing a telnet connection from a workstation to the server works normally using an IP address or FQDN. Examine the following reasons and determine possible causes for this network issue. (Select all that apply.)
- service is not running.
TCP ports are blocked. A network technician is setting up DHCP scopes for printers. Which of the following would be the best practice for these? (Select all that apply.)
Static assignment
- Reservation A network engineer wants to install an antenna that could receive and send data from all directions. What type of directional antenna would the network technician use?
- Omni
Which of the following describes the default port number(s) and purpose of Dynamic Host Configuration Protocol (DHCP)?
- UDP ports 67 and 68; a protocol for automatically assigning IP address information
An engineer suggests running fiber cable for a project. Which type allows for a longer distance?
