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Review. CNIT 106. 1: Introducing Computer Networks. What device connects multiple nodes at layer 1?. Client Server Hub Switch Router . What device lifts packets off one network onto a different network?. Client Server Hub Switch Router .
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Review CNIT 106
What device connects multiple nodes at layer 1? • Client • Server • Hub • Switch • Router
What device lifts packets off one network onto a different network? • Client • Server • Hub • Switch • Router
San Francisco has a 56 km fiber loop connecting government buildings throughout the city. What sort of network is that? • LAN • WAN • CAN • MAN • PAN
What physical topology is used by Ethernet? • Star • Bus • Ring • Full-mesh • Partial-mesh
Which layer uses logical addressing? • Layer 5, 6, or 7 • Layer 4 • Layer 3 • Layer 2 • Layer 1
What layer contains frames? • Layer 5, 6, or 7 • Layer 4 • Layer 3 • Layer 2 • Layer 1
What layer contains bits? • Layer 5, 6, or 7 • Layer 4 • Layer 3 • Layer 2 • Layer 1
Which layer uses MAC addresses? • Layer 5, 6, or 7 • Layer 4 • Layer 3 • Layer 2 • Layer 1
What transmission method is used by Ethernet? • Broadband • Baseband • FDM • TDM • StatTDM
What technique sends multiple signals with different wavelengths through the same medium? • Broadband • Baseband • FDM • TDM • StatTDM
Which protocol has a "window size" field in its header? • TCP • Ethernet • UDP • IP • 802.11
Which protocol has a TTL field in its header? • TCP • Ethernet • UDP • IP • 802.11
Which layer performs encryption? • Layer 7 • Layer 6 • Layer 5 • Layer 4 • Layer 1, 2, or 3
Which layer does routing? • Layer 7 • Layer 6 • Layer 5 • Layer 4 • Layer 1, 2, or 3
Which protocol uses port 443? • HTTP • FTP • Telnet • HTTPS • POP3
What cable has special fire-safety features? • Coax • UTP • STP • Plenum-rated • Fiber optic
What cable uses BNC connectors? • Coax • UTP • STP • Plenum-rated • Fiber optic
What device operates only at layer 3? • Hub • Bridge • Switch • Multilayer switch • Router
Four computers are connected to a hub. How many devices are in the collision domain? • 1 • 2 • 3 • 4 • Some other number
What device assigns IP addresses? • VPN Concentrator • Firewall • DNS server • DHCP server • Proxy server
Which DNS record contains an IPv6 address? • A • AAAA • MX • SOA • CNAME
What protocol is used to ring a VoIP phone? • SIP • PBX • RIP • RTP • BGP
What is the standard for gigabit Ethernet over copper wire? • 10BASE-T • 100BASE-TX • 100BASE-FX • 1000BASE-LX • 1000BASE-T
What IEEE standard implements VLANs? • 802.1q • 802.1x • 802.11 • 802.3 • 802.11ac
What protocol prevents broadcast storms? • VLAN • Trunk • STP • PoE • 802.1x
What is 59 in binary? • 0011 1010 • 0011 1011 • 0000 1111 • 0110 0011 • 0011 1001
What is the first usable address in this network?192.168.1.199 /25 • 192.168.1.0 • 192.168.1.1 • 192.168.1.129 • 192.168.1.193 • 192.156.1.255
When you view a Web page, which transmission method are you using? • Unicast • Multicast • Broadcast • Anycast • None of the above
Which technique results in addresses starting 169.254? • DHCP • APIPA • BOOTP • Static addressing • Multihoming
How many bits are in an IPv6 address? • 24 • 48 • 32 • 64 • None of the above
Which type of route is the most trusted? • Directly connected • Static • RIP • OSPF • BGP
Which is a distance-vector routing protocol? • Directly connected • Static • RIP • OSPF • BGP
What system conceals internal IP addresses? • NAT • IGMP • ICMP • RIP • SIP
Which WAN link allows more than 100 Gbps? • SONET • T1 • T3 • ATM • Frame relay
Which link is used by Ethernet? • UTP • Coax • Fiber optic • Power line • Wireless
Which technology uses a DOCSIS modem? • DSL • PPP • PPPoE • RRAS • Cable
Which system uses 48-byte cells? • Satellite • POTS • ISDN • Frame relay • ATM
Which of these was never used on wireless networks? • CSMA/CD • CSMA/CA • FHSS • DSSS • OFDM
Which Wi-Fi standard goes at 11 Mbps? • 802.11a • 802.11b • 802.11g • 802.11n • 802.11ac
Which wireless security technique requires a RADIUS server? • WEP • WPA • WPA2 • MAC address filtering • 802.1x