Exam2Spring22

.pdf

School

Texas A&M University *

*We aren’t endorsed by this school

Course

315

Subject

Computer Science

Date

Feb 20, 2024

Type

pdf

Pages

8

Uploaded by BaronWren4759

Report
ESET 315 Exam 2 –Mar 11 Please sign confirming that you will take this exam following the rules below and according to the Aggie Honor Code: “An Aggie does not lie, cheat or steal, or tolerate those who do.” Signature: ___________________ UIN: _____________________ Rules: This is a closed book, closed notes exam. No calculators are allowed. You will need only a pencil and an eraser. You must show all your work to receive full credit for your answers. There are 4 questions for a total of 85 points. Good luck! References: Subnet Masks table IP Addresses and Subnet Masks: Bit 7 128 Bit 6 64 Bit 5 32 Bit 4 16 Bit 3 8 Bit 2 4 Bit 1 2 Bit 0 1 0 0000 0000 128 1000 0000 192 1100 0000 224 1110 0000 240 1111 0000 248 1111 1000 252 1111 1100 254 1111 1110 255 1111 1111 Page 1 of 8
ESET 315 Exam 2 –Mar 11 HDLC frame (Note: sizes above are in bits) Point-to-Point (PPP) frame (Note: sizes above are in bits) This is a Wi-Fi frame (IEEE 802.11) (Note: sizes above are in bytes) Page 2 of 8
ESET 315 Exam 2 –Mar 11 Question 1 (30 points) Given the Wireshark packet below: Frame 164: 100 bytes on wire (800 bits), 100 bytes captured (800 bits) on interface \Device\ NPF_{9B5130AE-DED7-470E-904A-45CCFF1D9DF2}, id 0 Ethernet II, Src: PcsCompu_76:72:3c (08:00:27:76:72:3c), Dst: ASUSTekC_94:1e:e0 (18:31:bf: 94:1e:e0) Destination: ASUSTekC_94:1e:e0 (18:31:bf:94:1e:e0) Source: PcsCompu_76:72:3c (08:00:27:76:72:3c) Type: IPv4 (0x0800) Internet Protocol Version 4, Src: 192.168.1.172, Dst: 10.8.0.6 0100 .... = Version: 4 .... 0101 = Header Length: 20 bytes (5) Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT) Total Length: 86 Identification: 0xc018 (49176) Flags: 0x40, Don't fragment Fragment Offset: 0 Time to Live: 128 Protocol: TCP (6) Header Checksum: 0x0000 [validation disabled] [Header checksum status: Unverified] Source Address: 192.168.1.172 Destination Address: 10.8.0.6 Transmission Control Protocol, Src Port: 4712, Dst Port: 50723, Seq: 221, Ack: 55, Len: 46 Source Port: 4712 Destination Port: 50723 [Stream index: 1] [TCP Segment Len: 46] Sequence Number: 221 (relative sequence number) Sequence Number (raw): 1087335542 [Next Sequence Number: 267 (relative sequence number)] Acknowledgment Number: 55 (relative ack number) Acknowledgment number (raw): 2769092988 0101 .... = Header Length: 20 bytes (5) Flags: 0x018 (PSH, ACK) Window: 1025 [Calculated window size: 262400] [Window size scaling factor: 256] Checksum: 0xccaa [unverified] [Checksum Status: Unverified] Urgent Pointer: 0 [SEQ/ACK analysis] [Timestamps] TCP payload (46 bytes) [PDU Size: 46] IEEE C37.118 Synchrophasor Protocol, Data Frame [correct] Synchronization word: 0xaa01 Framesize: 46 bytes PMU/DC ID number (Stream source ID): 1 SOC time stamp: Feb 24, 2021 16:18:04.000000000 UTC Time quality flags Fraction of second (raw): 317000 Fraction of second: 317 milliseconds Measurement data [Dissected using configuration from frame: 160] Station: "1 " Flags Phasors (1), notation: rectangular, format: integer Phasor #1: "BV000001 ", 80245.099V 11.064° alt 78753.676+j15399.173V; unscaled: 4301, 841 Frequency deviation from nominal: 2448mHz (actual frequency: 62.448Hz) Rate of change of frequency: 0.000Hz/s Station: "2 " Flags Phasors (1), notation: rectangular, format: integer Phasor #1: "BV000002 ", 79823.624V 13.099° alt 77746.595+j18090.823V; unscaled: 4246, 988 Frequency deviation from nominal: 2448mHz (actual frequency: 62.448Hz) Rate of change of frequency: 0.000Hz/s Station: "3 " Page 3 of 8
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help