C172 Network & Security Foundations - Practice Test

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? - correct 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? - correct answer 3 Which 802.11 technologies use the 2.4Ghz spectrum? - correct answer 802.11n, g, & b What are the private address ranges for usable IP network addresses for Class B? - correct 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)? - correct answer 1918 255.255.252.0 is expressed as ____ using CIDR notation. - correct answer /22 because there are 22 1s in the subnet mask. What layer controls which terminals are sending and receiving? - correct answer Data link What are 3 parameters that define an RFID system? - correct answer Frequency of operation, power, & protocol The access point looks at the ____ to determine if the data packet is intended for its network. - correct answer SSID Are data rates higher or lower in a wired network versus a wireless network? - correct 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?) - correct answer Dynamic addressing Do 802.11 technologies use visible light? - correct answer No, they use infrared. In a Class C address, there are ___ network bits. - correct answer 24 What are 3 types of NICs? - correct answer USB, expansion card, PC card The point from one cable termination to another is called the ____. - correct answer Link How many bytes are in an IP address? - correct answer 4 bytes (also 4 octets, or 32 bits) The port number for FTP is ____. - correct answer 21 Which type of loss is caused by mechanical stress put on a fiber strand? - correct answer Microbending Single mode fiber typically uses what wavelengths? (2) - correct answer 1310 and 1550 nm What is the decimal equivalent of ? - correct answer 170 Which 802.11 technologies use the 2.4Ghz spectrum? - correct answer 802.11b, g, & n