C172 Network and Security Foundations Pre-Assessment

C172 Network and Security Foundations Pre-Assessment A very popular intrusion approach thanks to its success rate is what? Ans- Social Engineering The physical architecture of a computer network is known as its ____. Ans- Topologies The 802.11 wireless LAN uses what in order to identify the wireless traffic that is permitted to connect? Ans- SSID PING uses ____to verify a network connection. Ans- ICMP Which of the following is not a function of a bridge? Ans- To forward traffic based on a layer 3 address You have a network ID of 192.168.55.0 and you need to divide it into multiple subnets. You need at least 30 host ID's in each subnet. What is the maximum number of subnets you could have? Ans- 8 How can wireless clients find the network they are to connect to? Ans- Beacons are used What type of attack uses known passwords and many variations? Ans- Dictionary Which of the following is the order of fields in an Ethernet (DIX) frame after the Preamble? AnsDestination address, Source address, Type/Length, Data, Pad, FCS How many bits are in a subnet mask? Ans- 32 A type of DOS against a wireless network is called what? Ans- Jamming How does a switch decrease network traffic? (Choose two.) Ans- 1. Doesn't forward ARP replies to all ports 2. Forwards all data directly to the destination Which of the following causes 96% of attenuation? Ans- Scattering The bit rate for OC-3 is ____. Ans- 155.52 Mbps Which of the following is not a TCP/IP Model layer? Ans- Network What layer decides the route data will travel? Ans- Network What is the decimal equivalent of ? Ans- 37 Which of the following is an advantage for using wireless networking? (Choose two.) Ans- 1. User mobility 2. Flexible IPv6 numbers are written in what format? Ans- Hex Which of the following is not a step in the ARP process? Ans- Destination sends ARP request to get the address for the sender Which of the following is not another name for a MAC address? Ans- multicast address This layer performs encryption and compression. Ans- Presentation What is a piece of information you get with the ipconfig /all command that you would not with just ipconfig? Ans- DHCP information TIA/EIA 568-A revision B standard was developed in ____. Ans- 1995 Jack wants to prevent the WAP of his company's network from being accessed by intruders. What will he do? Ans- Implement WPA2 The standard for 10Gbps is 802.3an-2006 ________. Ans- 10GBASE-T The layer of the OSI reference model that provides a user interface is the ____ layer. Ans- Application Which statement about the nature of light is incorrect? Ans- Fiber optics use the infrared light spectrum When a network is protected behind the firewall, it is sometimes referred to as a(n) ____ network. AnsInternal Which two of the following are common wireless security standards? Ans- 1. WEP 2. WPA The bend radius for UTP cable is ___ times the jacket diameter. Ans- 4 In a Class B address, there are ____ host bits. Ans- 16 The IP address is typically expressed in ____ format. Ans- Dotted Decimal What layer provides for electrical and mechanical specifications? Ans- Physical UTP cables can be run a maximum length of ____. Ans- 100 meters Which of the following can be used to connect to a broadband network through your telephone connection only? Ans- DSL Modem The range of a WiMAX network is ____. Ans- 30 miles Which of the following statements regarding a router is false? Ans- A router creates one broadcast domain by default What is the first step to designing an office LAN? Ans- Document the devices to be connected Which of the following is a denial-of-service attack characterized by using all connections available on a computer? Ans- SYN Flood The _____ of the MAC address is the unique address portion assigned by the manufacturer. Ans- Last half Which of the following is a primary benefit of a proxy server, assuming the proxy server is only performing proxy services? Ans- It hides inside addresses from the public