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Domain 4(b) - Easy Spread spectrum is a wireless communications technique which modifies a signal's ____ to increase available bandwidth. Channels Gain Amplitude View Feedback IEEE Standard 802.11e (echo) added what capabilities to the 802.11 family of wireless networking standards? Increased data transfer rates Wireless Roaming (AP handoffs) compatibility with European standards for wireless networks View Feedback Which of these encryption algorithms can be used with WPA2? TKIP All of the listed choices are correct. RC Question 1 2 / 2 points Frequency Question 2 2 / 2 points Quality of Service and support for time sensitive applications such as multimedia Question 3 0 / 2 points CCMP
View Feedback Application and circuit level proxy firewalls _____. both block traffic at the protocol level. both work at level 1 (Physical Layer) of the OSI stack none of the listed choices are correct. View Feedback Which type of transmission media is used by Ethernet? fiber optic coaxial cabling radio waves View Feedback What is the shape of a cellular network "cell?" Pentagon Rectangle Triangle Question 4 2 / 2 points both prevent direct end-to-end connections between source and destination systems. Question 5 2 / 2 points UTP (unshielded twisted pair) Question 6 2 / 2 points Hexagon
View Feedback EAP-TLS provides authentication using _____. None of the listed choices are correct. symmetric encryption MAC addresses View Feedback Networks based on IEEE Standard 802.16 are commonly referred to as _____. wireless personal area networks (WPAN) Campus Area Networks (CAN) optical wireless access View Feedback Conventional radio transmissions ___. cannot transmit digital data transmit digital data by varying the signal strength none of the listed choices are correct. View Feedback Which of the following technologies is NOT used for Personal Area Networks? Question 10 2 / 2 points digital certificates Question 11 2 / 2 points broadband wireless access Question 12 2 / 2 points are modulated onto a single carrier wave Question 13 2 / 2 points
Zigbee Infra-Red (IrDA) Bluetooth View Feedback IEEE Standard 802.11j (jay) focuses upon which of the following? beamforming multiple input, multiple output (MIMO) to increase throughput Metropolitan Area Networks (MAN) View Feedback IEEE Standard 802.11i (eye) defined which security protocol for WiFi networks? Shared Key Authentication (SKA) Wired Equivalent Privacy (WEP) WiFi Protected Access (WPA) View Feedback Which of the following provide the weakest security for WiFi connections? WiFi Protected Access (WPA) Shared Key Authentication (SKA) Wired Equivalent Privacy (WEP)
ATM
Question 14 2 / 2 points Interoperability of wireless networks in differing countries Question 15 2 / 2 points WiFi Protected Access II (WPA2) Question 16 2 / 2 points Open System Authentication (OSA)
an edge device used to implement store and forward for Web traffic a firewall that protects an internal sub net from external traffic a privacy enhancing application installed on the user's computer View Feedback Which of the following network topologies provides multiple paths to all nodes by interconnecting routers and switches? Ring Star Bus View Feedback Which of the following is a benefit of content distribution networks? None of the listed choices are correct. Compliance with local laws and regulations is easier to implement when servers are located in the same jurisdiction as customers. Network resiliency is improved by having distributed servers for content delivery. View Feedback A WLAN (wireless local area network) connects to ethernet via a _____ to provide connectivity to resources on a wired network. an intermediary between clients and servers that can cache frequently requested external resources. Question 18 2 / 2 points Mesh Question 19 2 / 2 points Having distributed servers to deliver content reduces jitter in video caused by network delays. Question 20 2 / 2 points
cable network access card RJ-45 connector View Feedback Wireless LAN technology uses ___ to share the same media. spread spectrum collision detection (CSMA/CD) frequency hopping View Feedback A screened host is _____. a server located inside a DMZ None of the listed choices are correct. a host based firewall that is behind a screened subnet View Feedback Which of the following is NOT a core deficiency of the Wired Equivalent Privacy (WEP) protocol? Ineffective use of initialization vectors Use of static encryption keys transceiver Question 21 2 / 2 points collision avoidance (CSMA/CA) Question 22 2 / 2 points a firewall that is protected from an external network by a packet filtering router Question 23 2 / 2 points
an algorithm to compute which frequency the receiver should listen to next All of the listed choices are correct. View Feedback Which of the following is NOT a form of wireless communications used for networking? Ham Radio Microwave Satellite View Feedback WLANS can be segemented using ___. MAC addresses carrier specific SIM cards None of the listed choices are correct View Feedback In the context of telephone service and telephony, what is a PBX? None of the listed choices are correct. Private Bundle Enterprise Public Branch Exchange Question 27 2 / 2 points Radar Question 28 2 / 2 points unique SSID's Question 29 2 / 2 points Private Branch Exchange
View Feedback ____ is an attack that uses a Bluetooth connection to steal information from a wireless device. Bluestealing Bluejacking Bluebugging View Feedback Domain 4(b) - Medium Network Access Control should do two things: ______ and _____. None of the listed choices are correct. authenticate users, block attacks respond to requests for digital certificates, encrypt user sessions View Feedback In the context of software defined networking, what is the difference between a control plane and a forwarding plane? The control plane routes control messages, whereas the forwarding plane transfers packets to other destinations. The control plane is tactical, the forwarding plane is strategic with respect to routing decisions. Question 30 2 / 2 points Bluesnarfing Question 31 2 / 2 points authenticate devices, verify device compliance with access control policy Question 32 2 / 2 points A control plane maintains the table of routes for outbound packets, whereas the forwarding plane is where traffic forwarding decisions are made.
It replaces WPA with WEP. It fixes the initialization vector vulnerability. It replaces RC4 with the AES encryption algorithm. View Feedback A Bastion Host is a/an _____ that is _____. server, located within a DMZ router,located within a Bastion domain None of the listed choices are correct. View Feedback Implementation of Unified Threat Management is a popular security strategy that uses a single dedicated device to implement a broad range of network security functions. Which of the following issues can cause UTM to be a less than satisfactory solution? If the UTM does not have sufficient processing power, it could become a chokepoint for network traffic causing increased latency and decreased bandwidth. All listed choices are correct. If the UTM is hacked, that could result in increased network vulnerabilities and allow future attacks to go unnoticed/unreported. View Feedback In the context of networking, which of the following describes Multiplexing? It restricts network access until authentication and authorization have been completed. Question 36 2 / 2 points highly exposed device,connected to an untrusted network Question 37 2 / 2 points If the UTM crashes, that will cause a single point of failure for network traffic. Question 38 2 / 2 points
centralized switching for end-to-end telephone connections None of the listed choices are correct. combining multiple media for transmission of a single data channel View Feedback RF Signals used to transmit wireless communications are described in terms of _______ and _________. bandwidth, throughput None of the listed choices are correct. frequency, bandwidth View Feedback Endpoint is the term used to describe a device that ___________ but ____________. provides endpoint protection for a network, does not protect servers is used by end users, also has server-like behavior is at the end of a network link, does not terminate the network connection View Feedback Domain 4(b) - Hard Which of the following is the strongest reason for not providing 2G protocols on cellular networks? Jamming attacks can force 3G and 4G mobile phone to use 2G protocols if available. combining multiple data streams for transmission over a single channel Question 39 2 / 2 points frequency, amplitude Question 40 2 / 2 points communicates over a network, does not mediate network communications. Question 41 2 / 2 points
been brought in to provide a detailed review and recommendations. Which of the following recommendations should the consultant make to address DNS Spoofing and DNS cache poisoning attacks against the company's public facing DNS servers? Shutdown the public facing DNS server and block all DNS updates. Implement a firewall to filter out spoofed DNS updates. Implement an intrusion detection and prevention system to block DNS spoofing and poisoning attacks. View Feedback Satellite connections can be used to provide Internet access via a two-way connection. Which of the following is the most important characteristic for ensuring that the connection can be used by subscribers? The subscriber must have a high power antenna. The receiver must be covered by a protective radome to prevent sunlight or rain from interferring with reception. The satellite antenna (dish) must be large enough to receive the signal at the subscriber's desired bandwidth. View Feedback A network manager needs to get an inventory of all devices physically connected to an enterprise's networks. In part, this is to help identify unknown devices which should not be connected. She decided that she will query devices subnet by subnet to ensure she knows where the devices are connected. Which transmission method should be used to send the query message? Broadcast IGMP Unicast Implement DNSSEC to ensure that updates to the DNS cache are authenticated via public key cryptography before being accepted. Question 45 2 / 2 points The subscriber's antenna must be located within the footprint of the satellite. Question 46 0 / 2 points Multicast
View Feedback Choose the Mobile Technology Generation that has the following characteristics: uses OFDMA, can transmit/receive HD video, provides native IPv6 data support. Wireless networks differ from wired networks in that __________. None of the listed choices are correct. Wired networks use bandwidth. Wireless networks use spectrum. Wireless need extra security measures to prevent eavesdropping. Wired networks have security built in. View Feedback Local area networks are made possible by media sharing protocols. These allow multiple computers or endpoint devices to share the same transmission media to send and receive information. Which of the following protocols requires that a talker listen before sending a broadcast announcement of its intent to transmit data? Token Passing CS/CD Polling Question 47 0 / 2 points View Feedback
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None of the listed choices are correct. 3 G 2 G Question 48 2 / 2 points Wired networks need protocols for handling collisions. Wireless networks need protocols for sharing spectrum. Question 49 2 / 2 points CSMA/CA
