C172 Network & Security Foundations - Practice Test A

What is the subnet address for a packet that is sent to 174.118.17.95 with a subnet mask of 255.255.248.0? - Answer- 174.118.16.0 With an address of 197.15.22.31 and a subnet mask of 255.255.255.224, how many bits have been borrowed to create a subnet? - Answer- 3 Which 802.11 technologies use the 2.4Ghz spectrum? - Answer- 802.11n, g, & b What are the private address ranges for usable IP network addresses for Class B? - Answer- 10.x.x.x, 172.16-31.x.x, 192.168.x.x. 40 Private IP addresses were defined in which RFC (which year)? - Answer- 1918 255.255.252.0 is expressed as ____ using CIDR notation. - Answer- /22 because there are 22 1s in the subnet mask. What layer controls which terminals are sending and receiving? - Answer- Data link What are 3 parameters that define an RFID system? - Answer- Frequency of operation, power, & protocol The access point looks at the ____ to determine if the data packet is intended for its network. - Answer- SSID Are data rates higher or lower in a wired network versus a wireless network? - Answer- Data rates are higher in a wired network (as high as 100Gbps) ____ means that a MAC address was assigned to a port when the device sends a packet. (dynamic or static?) - Answer- Dynamic addressing Do 802.11 technologies use visible light? - Answer- No, they use infrared. In a Class C address, there are ___ network bits. - Answer- 24 What are 3 types of NICs? - Answer- USB, expansion card, PC card The point from one cable termination to another is called the ____. - Answer- Link How many bytes are in an IP address? - Answer- 4 bytes (also 4 octets, or 32 bits)